Find the right benchmark for speech, audio, and music
Search 97 benchmark families by task, access path, and upstream terms. Start from official sources, use the safe-first helpers, and adapt the evaluation workflow to your model.
This index does not mirror datasets or endorse one benchmark over another. Upstream licenses and access terms control; re-check them before training, redistribution, commercial use, or publishing results. Helpers default to documentation or metadata when large or restricted files require an explicit opt-in.
Start with the task
What are you evaluating?
Choose a broad family to narrow the catalog. Detailed task tags remain searchable inside every benchmark record.
Benchmark catalog
Browse all 97 benchmarks
Search names, tasks, source notes, or license terms. Filters change discovery only—the list is alphabetical, not ranked.
Showing 97 of 97 benchmarks.
Audio understanding & events
AIR-Bench
AIR-Bench: Benchmarking Large Audio-Language Models via Generative Comprehension
Safe-first helper
Audio Question AnsweringAudio Instruction FollowingAudio Language Model EvaluationSpeech Understanding+2 more
Access pathHugging Face
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-4.0
Code license
Apache-2.0
License caution
The HF dataset card lists CC BY-NC 4.0 and enumerates component sources with mixed upstream licenses, including MusicCaps, Clotho, Fisher, SpokenWOZ, Common Voice, IEMOCAP, acoustic-scene datasets, MUSIC-AVQA, FMA, MTG-Jamendo, NSynth, SLURP, VoxCeleb, LibriSpeech, CoVoST 2, Fake-or-Real, and VocalSound. Re-check component terms before redistribution or commercial use.
Download notes
The helper downloads the official GitHub README and Hugging Face dataset card by default. The full HF audio snapshot is about 45.9 GB, so it requires AIR_BENCH_DOWNLOAD_HF=1; cloning the evaluation repo is also opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
Apache-2.0
Code license
not_applicable
License caution
OpenSLR SLR33 lists Apache License v2.0 and also describes the data as free for academic use; re-check upstream terms before redistribution or commercial use.
Download notes
OpenSLR hosts a 15 GiB speech/transcript archive plus a small supplementary resource archive with lexicon and speaker info. The helper saves the OpenSLR page and supplementary archive by default; the large corpus archive is an explicit opt-in.
AISHELL-3: A Multi-speaker Mandarin TTS Corpus and the Baselines
Safe-first helper
Text To SpeechSpeech SynthesisMulti Speaker Speech SynthesisMandarin Speech Synthesis+1 more
Access pathOpenSLR
Upstream termsOpen / attribution signals
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
Apache-2.0
Code license
not_specified
License caution
OpenSLR SLR93 lists Apache License v2.0 for the resource. The aishelltech external URL redirected but returned HTTP 429 during the 2026-07-09 check, so OpenSLR was used as the primary access page.
Download notes
OpenSLR lists one 19 GiB speech/transcript archive. The helper saves the official OpenSLR page by default and requires AISHELL3_DOWNLOAD_ARCHIVE=1 before downloading the archive.
AliMeeting: A Free Mandarin Multi-channel Meeting Speech Corpus
Safe-first helper
Meeting TranscriptionMulti Channel AsrMulti Speaker AsrSpeaker Diarization+1 more
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-sa-4.0
Code license
not_applicable
License caution
OpenSLR SLR119 lists AliMeeting under CC BY-SA 4.0. The corpus contains real Mandarin meetings with far-field microphone-array and near-field headset recordings; check challenge rules for benchmark submissions.
Download notes
The helper downloads small OpenSLR metadata by default. Corpus archives are large, about 73.24 GiB far-field train, 22.85 GiB near-field train, 3.42 GiB eval, and 8.90 GiB test, so they are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
Official AMI pages say the corpus, signals, transcription, and some annotations are CC BY 4.0. OpenSLR SLR16 still lists an older modified CC BY-NC-SA v2.0 notice, so prefer the official AMI license page for current terms and re-check before redistribution.
Download notes
The helper downloads official annotation ZIPs by default. OpenSLR acoustic archives and the HF converted dataset are large, so audio downloads are explicit opt-ins.
ASVspoof 2019: The 3rd Automatic Speaker Verification Spoofing and Countermeasures Challenge database
Safe-first helper
Speaker Verification Anti SpoofingPresentation Attack DetectionSpoofed Speech DetectionSynthetic Speech Detection+1 more
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
odc-by-1.0
Code license
not_applicable
License caution
Edinburgh DataShare metadata lists Open Data Commons Attribution License and ships the ODC Attribution license text. The license text itself cautions that database contents can have separate rights; ASVspoof 2019 is derived from VCTK, so re-check component terms before redistribution.
Download notes
The DataShare record exposes README, license, evaluation plan, paper PDF, and LA/PA archives. The helper downloads small documentation/license files by default; LA is about 7.6 GiB and PA is about 17.7 GiB, so archives are explicit opt-ins.
Speaker Verification Anti SpoofingPresentation Attack DetectionSpoofed Speech DetectionSynthetic Speech Detection+2 more
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
not_specified
License caution
The official ASVspoof 2021 page says the databases are available under an Open Data Commons Attribution Licence. Zenodo currently lists ODC-BY for LA and PA, and ODC-ODbL for DF; re-check active Zenodo metadata and component-source terms before redistribution. The GitHub baseline repository did not expose a detected license via the GitHub API on 2026-07-10.
Download notes
The helper downloads the evaluation plan, LA/PA/DF keys and metadata, Zenodo record metadata, and file-map metadata by default. Evaluation speech archives are large: LA is about 7.8 GB, PA is split into seven parts totaling about 47 GB, and DF is split into four parts totaling about 34.5 GB, so speech archives are explicit opt-ins.
AudioCaps: Generating Captions for Audios in The Wild
Safe-first helper
Audio CaptioningAudio Language Modeling
Access pathHugging Face
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
academic_only
Code license
MIT
License caution
GitHub README says the code and dataset are free to use for academic purposes only. The repository has an MIT license, but the README adds the academic-use condition for repository material; re-check before redistribution or commercial use.
Download notes
Official CSVs contain captions, YouTube ids, and segment start times. Raw audio/video download requires the upstream form and is subject to AudioSet/YouTube availability and terms.
AudioMNIST: Exploring Explainable Artificial Intelligence for audio analysis on a simple benchmark
Safe-first helper
Spoken Digit ClassificationAudio ClassificationSpeaker Metadata AnalysisExplainable Audio Ai
Access pathOfficial / other
Upstream termsOpen / attribution signals
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
MIT
Code license
MIT
License caution
The repository-level LICENSE is MIT and GitHub API reports MIT. Confirm whether downstream use of recorded voices raises consent/privacy obligations beyond the code/data license.
Download notes
The repository contains about 30,000 spoken-digit WAV files from 60 speakers plus speaker metadata and Caffe examples. Because the GitHub repository is large, the helper downloads README/LICENSE metadata by default and requires AUDIO_MNIST_DOWNLOAD_REPO=1 before cloning the full repository.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
AudioSet dataset annotations/features are CC BY 4.0; the ontology is CC BY-SA 4.0. Original YouTube media remains subject to upstream availability and terms.
Download notes
Official release provides segment CSVs and precomputed 128-dimensional audio features; it does not redistribute original YouTube audio.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-sa-4.0
Code license
not_applicable
License caution
OpenSLR SLR150 lists CC BY-SA 4.0. CHiME says CHiME-6 is a corrected-alignment version of CHiME-5 and recommends CHiME-6 for new work.
Download notes
The helper downloads OpenSLR transcriptions, floorplans, and license by default. Audio archives are large, about 97 GiB train, 11 GiB dev, and 12 GiB eval, so they are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
not_specified
License caution
Zenodo lists rights as Other (Attribution). Audio clips keep their original Freesound licenses, mostly Creative Commons with attribution, recorded in metadata CSVs. Captions are under the Tampere University license, mainly non-commercial with attribution.
Download notes
Clotho v2.1 audio archives total about 7.1 GiB; the helper downloads captions/metadata by default and makes audio opt-in.
CoVoST 2: Massively Multilingual Speech-to-Text Translation Corpus
Safe-first helper
Speech To Text TranslationSpeech TranslationMultilingual AsrMachine Translation
Access pathHugging Face
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
Meta/GitHub list CoVoST data as CC0; the current Hugging Face card lists CC BY-NC 4.0, and current Mozilla Data Collective packages for CoVoST 2/Common Voice segments may be CC BY-NC 4.0.
Code license
cc-by-nc-4.0
License caution
Treat packaged mirrors conservatively and re-check the active source before redistribution. The GitHub license table also says Tatoeba evaluation sentences are CC BY 2.0 FR and Tatoeba speech has per-row licenses.
Download notes
The helper downloads the official CoVoST 2 translation TSV archives and split-generation script. CoVoST 2 rows match Common Voice 4 validated.tsv entries, so users must obtain Common Voice audio separately under the applicable upstream terms.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
odbl-1.0
Code license
not_specified
License caution
The official README/LICENSE say the database is under the Open Database License 1.0 and individual contents are under the Database Contents License 1.0. GitHub reports license as NOASSERTION, so keep the explicit upstream text as authority.
Download notes
The helper downloads small README/license/CSV metadata by default. Full audio and video live in Git LFS and require about 7.55 GiB for a complete clone; upstream asks repository users to fill out the access/community form.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
MIT
License caution
Zenodo records for DESED real and synthetic list CC BY 4.0. The GitHub README says the Python code is MIT and that component datasets include license files at their roots; source media comes from AudioSet/YouTube, Freesound, MUSAN, SINS, and related sources, so re-check component terms before redistribution.
Download notes
The helper downloads the official repo plus Zenodo record JSON and small metadata/JAMS files by default. Real and synthetic audio archives are multi-GB and require explicit opt-in flags.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
ldc_user_agreement
Code license
not_applicable
License caution
LDC2022S12 and LDC2022S14 list the LDC User Agreement for Non-Members and are available through LDC membership/non-member access. Re-check active LDC terms and component source restrictions before use or redistribution.
Download notes
The LDC catalog records list web-download development and evaluation releases with user-agreement access. The helper only prints official access steps; it does not download LDC-controlled data.
Speech EnhancementSpeech DenoisingDereverberationPersonalized Speech Enhancement+1 more
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
MIT
License caution
The repository legal notice says documentation/content are CC BY 4.0 and code is MIT. DNS training data includes component sources such as AudioSet, Freesound, VCTK, VocalSet, and multilingual speech, so component/source-media terms should be re-checked before redistribution or commercial use.
Download notes
DNS5 development and blind test sets are multi-GB archives; the full training resources are hundreds of GB compressed and about 1 TB unpacked. The helper saves official README/license/downloader-script files by default and makes data archives explicit opt-ins.
Dynamic-SUPERB: A dynamic, collaborative, and comprehensive instruction-tuning benchmark for speech
Safe-first helper
Spoken Language Model EvaluationInstruction FollowingSpeech UnderstandingAudio Understanding+4 more
Access pathHugging Face
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
not_specified
License caution
GitHub API reported no repository license on 2026-07-09. The benchmark aggregates tasks from many component datasets; use the official task metadata and each upstream corpus license before redistribution, training, or commercial use.
Download notes
The helper downloads the official README and leaderboard documentation by default and clones the benchmark repository only with DYNAMIC_SUPERB_CLONE_REPO=1. The benchmark is collaborative and spans many speech, music, and general sound tasks, so underlying task data should be checked through each component source before use.
Earnings-22: A Practical Benchmark for Accents in the Wild
Safe-first helper
AsrAccented Speech RecognitionLong Form Speech RecognitionFinancial Speech Recognition
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-sa-4.0
Code license
not_specified
License caution
The earnings22 README shows a CC BY-SA 4.0 license badge, and LICENSE.md states that transcripts and associated text files are CC BY-SA 4.0. The top-level GitHub repository does not expose a detected repository license, and audio is stored through Git LFS, so re-check upstream terms before redistribution or commercial use.
Download notes
Earnings-22 contains 125 English-language earnings-call files totaling about 119 hours. The helper downloads README, license, and metadata by default; sparse checkout of transcripts/media is opt-in, and Git LFS audio pull is a second explicit opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
custom_non_commercial
Code license
not_specified
License caution
The EmoV-DB license permits non-commercial research, teaching, scientific publication, and personal experimentation, and asks users to contact the dataset owner for commercial use. GitHub API reports license NOASSERTION/Other.
Download notes
OpenSLR SLR115 hosts per-speaker/per-emotion archives. The helper downloads OpenSLR/GitHub docs and license by default; speech archives are opt-in with EMOV_DB_DOWNLOAD_ARCHIVES=1.
ESC-50: Dataset for Environmental Sound Classification
Safe-first helper
Environmental Sound ClassificationAudio Tagging
Access pathOfficial / other
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-3.0
Code license
not_specified
License caution
ESC-10 subset clips are CC BY; ESC-50 as a whole is Creative Commons Attribution-NonCommercial. Per-clip Freesound attributions are in the repository LICENSE file.
Europarl-ST: A Multilingual Corpus for Speech Translation of Parliamentary Debates
Safe-first helper
Speech To Text TranslationSpeech TranslationMultilingual AsrParliamentary Speech Translation+1 more
Access pathOfficial / other
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-4.0
Code license
not_applicable
License caution
The official README says the work carried out to construct Europarl-ST is released under CC BY-NC 4.0, while all rights of the underlying data belong to the European Union and respective copyright holders. Re-check EU/European Parliament reuse terms before redistribution or commercial use.
Download notes
The official page links release v1.1, which adds Romanian, Polish, and Dutch to German, English, Spanish, French, Italian, and Portuguese for 72 speech translation directions, plus a train-noisy set. The v1.1 archive is about 21 GB, so the helper downloads only the official page and README by default and requires EUROPARL_ST_DOWNLOAD_ARCHIVE=1 for the archive.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
custom_ldc_license
Code license
not_applicable
License caution
The LDC catalog pages list the LDC User Agreement for Non-Members and availability for Subscription/Standard Members and Non-Members. Re-check the current LDC agreement before use or redistribution.
Download notes
Fisher English is distributed by LDC after login/licensing. The helper only prints official access steps because the speech and transcripts are paid/licensed catalog releases, not publicly script-downloadable archives.
Fluent Speech Commands: A dataset for spoken language understanding research
Manual or gated
Spoken Language UnderstandingIntent ClassificationSlot FillingSmart Home Voice Commands
Access pathOfficial / other
Upstream termsNon-commercial / research terms
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_specified
License caution
Official Fluent.ai page says the dataset is released strictly for academic research only under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International, and not authorized for commercial use. No current public code repository was identified.
Download notes
The helper downloads the public dataset page and license PDF, then prints the manual Google Groups access path. The official page says the corpus contains 30,043 single-channel 16 kHz WAV utterances from 97 speakers with action, object, and location slot labels; do not commit granted links or downloaded audio.
Music Genre ClassificationMusic Auto TaggingMusic RecommendationArtist Identification+2 more
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
MIT
License caution
Official GitHub README says metadata is CC BY 4.0, code is MIT, and audio is distributed under the license chosen by each artist because the dataset maintainers do not hold audio copyright. UCI lists the dataset record as CC BY 4.0, but per-track audio licenses should be checked before redistribution or commercial use.
Download notes
The helper downloads official README/license files by default. Metadata is 342 MiB; audio archives range from 7.2 GiB for fma_small to 879 GiB for fma_full, so metadata and audio are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed_creative_commons
Code license
not_specified
License caution
Zenodo says individual Freesound clips keep per-clip CC0, CC-BY, CC-BY-NC, or CC Sampling+ licenses, with clip-level license mappings in the metadata JSON files. FSD50K as a curated dataset is additionally released under CC BY, but the maintainers warn that a single global license is not straightforward because items have different licenses.
Download notes
The helper downloads the small documentation, ground-truth, and metadata ZIPs by default. Audio is split across about 24.7 GiB of dev archives plus about 6.2 GiB of eval archives, so audio download is an explicit opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed_creative_commons
Code license
not_specified
License caution
The Zenodo record license id is other-at. The record states FSDKaggle2018 as a curated dataset is CC BY, while individual Freesound clips retain per-clip Creative Commons licenses listed in train_post_competition.csv and test_post_competition_scoring_clips.csv. Kaggle competition rules and Freesound source terms should also be checked for challenge use.
Download notes
The helper downloads the Zenodo record JSON plus small documentation and metadata ZIPs by default. The audio archives are about 4.6 GiB combined, so audio download is an explicit opt-in.
Automatic Speech RecognitionRussian Speech RecognitionFar Field Speech RecognitionLanguage Modeling
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
custom_golos_license
Code license
not_specified
License caution
OpenSLR points to SberDevices' English and Russian PDF license files rather than an SPDX-style open license. Re-check those PDFs before redistribution, commercial use, or training release claims.
Download notes
OpenSLR SLR114 mirrors an 18 GiB Opus archive with Russian speech and transcripts, a 71 MiB QuartzNet acoustic model, and 4.7 GiB KenLM language models. The helper saves the OpenSLR page, README, checksums, and license PDFs by default and requires explicit opt-ins before downloading large archives.
Music Genre ClassificationMusic Information Retrieval
Access pathHugging Face
Upstream termsNot specified
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
not_specified
Code license
not_specified
License caution
The reachable Hugging Face dataset card does not state a data license. Treat redistribution and commercial use as unclear until the Marsyas/original dataset terms are confirmed.
Download notes
The Hugging Face card describes 1,000 30-second mono WAV tracks across 10 genres and provides a reproducible datasets loader. The helper saves the HF dataset card by default and requires GTZAN_DOWNLOAD_HF=1 before downloading the audio snapshot.
HEAR: Holistic Evaluation of Audio Representations
Safe-first helper
Audio Representation EvaluationSpeech ClassificationEnvironmental Sound ClassificationMusic Classification+1 more
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
Apache-2.0
License caution
Zenodo record lists CC BY 4.0 but explicitly says component datasets have different open licenses and to inspect each dataset's LICENSE.txt; eval kit repo is Apache-2.0.
Download notes
The helper downloads the Zenodo record metadata and LICENSE.txt by default. Individual task archives are large and opt-in; the Zenodo record notes that TFDS-derived crema-d, GTZAN genre, and GTZAN music/speech tasks in this release were retracted because of a preprocessing bug.
Text To SpeechSpeech SynthesisMulti Speaker Speech SynthesisHigh Fidelity Speech Synthesis+1 more
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
OpenSLR SLR109 lists CC BY 4.0. The corpus is based on public-domain LibriVox audiobooks and Project Gutenberg texts, but downstream users should still preserve attribution and check packaged metadata.
Download notes
OpenSLR lists one 39-41 GiB speech/text archive. The helper saves the official OpenSLR page by default and requires HIFITTS_DOWNLOAD_ARCHIVE=1 before downloading the archive.
HI-MIA: A Far-field Text-Dependent Speaker Verification Database and the Baselines
Safe-first helper
Text Dependent Speaker VerificationFar Field Speaker VerificationWake Word Speaker VerificationSpeaker Recognition
Access pathOpenSLR
Upstream termsOpen / attribution signals
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
apache-2.0
Code license
not_applicable
License caution
OpenSLR SLR85 lists Apache License v2.0. The paper says HI-MIA contains recordings from 340 people in real-room far-field settings and is extracted from AISHELL-WakeUp-1.
Download notes
OpenSLR SLR85 hosts the AISHELL Speaker Verification Challenge 2019 far-field text-dependent speaker verification data. The helper downloads the official page and filename mapping by default; train/dev/test archives are multi-GB and require HIMIA_DOWNLOAD_ARCHIVES=1.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
custom_research_license
Code license
not_applicable
License caution
The official release page links a USC/SAIL data release form and Google request form. Treat access as manual/form-gated and re-check the signed release terms before redistribution, commercial use, or sharing derived copies.
Download notes
IEMOCAP is released by request after reading the license and submitting the official electronic release form; there is no public one-command archive URL.
AsrAccented Speech RecognitionMispronunciation DetectionAccent Conversion+2 more
Access pathOfficial / other
Upstream termsNon-commercial / research terms
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
cc-by-nc-4.0
Code license
not_applicable
License caution
Official homepage states the corpus is released under CC BY-NC 4.0; usage outside that license requires contacting the TAMU dataset owner. The current release covers 24 non-native English speakers plus suitcase-corpus material, while the Interspeech 2018 paper describes the initial v1.0 release.
Download notes
Official access requires reviewing the CC BY-NC 4.0 license terms and submitting the download form with name, email, and affiliation. The project sends a generated Google Drive link by email, so the helper prints manual access steps rather than storing or using private generated URLs.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
not_specified
Code license
MIT
License caution
The GitHub repository says Libri-Light code is MIT, but the reviewed README and data-preparation docs do not state a standalone data license. The paper describes the data as derived from open-source LibriVox audiobooks, so re-check per-source audiobook terms and attribution requirements before redistribution.
Download notes
The helper downloads official README/license/data-preparation/evaluation docs by default. Limited-supervision finetuning data is about 0.6 GiB, ABX item data is small, and unlabeled audio ranges from 35 GiB small to 321 GiB medium and 3.05 TiB large, so all data archives require explicit opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed_derived
Code license
MIT
License caution
The LibriMix repository license is MIT for code/scripts. Generated data is derived from LibriSpeech, which OpenSLR lists as CC BY 4.0, plus WHAM noise; re-check WHAM terms and cite all upstream components before redistribution or commercial use.
Download notes
The helper clones the official generator/metadata repository by default. Running generation downloads LibriSpeech clean subsets and WHAM noise, then creates many mixtures; the upstream README estimates about 430 GiB for Libri2Mix plus 332 GiB for Libri3Mix, with additional source storage, so generation requires an explicit opt-in and an external storage directory.
LibriTTS: A Corpus Derived from LibriSpeech for Text-to-Speech
Safe-first helper
Text To SpeechSpeech SynthesisVoice CloningMulti Speaker Speech Synthesis
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
OpenSLR SLR60 lists CC BY 4.0. LibriTTS is derived from LibriSpeech, which in turn derives from LibriVox audio and Project Gutenberg text.
Download notes
OpenSLR lists seven archives totaling tens of GiB; the helper saves the official OpenSLR page by default and requires LIBRITTS_DOWNLOAD_ARCHIVES=1 before downloading archives.
Text To SpeechSpeech SynthesisSingle Speaker Speech SynthesisAsr
Access pathHugging Face
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
public_domain
Code license
not_applicable
License caution
Official page says text, audio, and annotations are public domain; the HF mirror lists unlicense.
Download notes
The official archive is about 2.6 GiB. The helper saves the official dataset page by default and requires LJSPEECH_DOWNLOAD_ARCHIVE=1 before downloading the archive.
Audio CaptioningAudio TaggingMulti Annotator Audio LabelingAcoustic Scene Captioning
Access pathZenodo
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
other-nc
Code license
not_applicable
License caution
Zenodo lists MACS as Other (Non-Commercial), and LICENSE.txt grants experimental non-commercial use with attribution to Tampere University/Machine Listening Group. Audio files come from TAU Urban Acoustic Scenes 2019, whose Zenodo record also lists Other (Non-Commercial).
Download notes
The helper downloads the MACS annotations, competence scores, license, and TAU Urban Acoustic Scenes 2019 docs/metadata by default. The upstream TAU 2019 audio shards are large, so audio download is an explicit opt-in.
MAESTRO: MIDI and Audio Edited for Synchronous TRacks and Organization
Safe-first helper
Automatic Music TranscriptionPiano TranscriptionMusic SynthesisSymbolic Music Modeling
Access pathOfficial / other
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-sa-4.0
Code license
not_applicable
License caution
Official Magenta page says the dataset is made available by Google LLC under Creative Commons Attribution Non-Commercial Share-Alike 4.0.
Download notes
The helper downloads v3.0.0 CSV/JSON metadata by default. The MIDI-only archive is about 56 MiB and the full WAV+MIDI archive is about 101 GiB, so both are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_applicable
License caution
OpenSLR lists CC BY-NC-ND 4.0 and says the corpus is freely published for non-commercial or academic use. Re-check the current official page before redistribution or commercial use.
Download notes
The helper downloads the OpenSLR page and small metadata archive by default. Speech archives are large, including about 52 GiB train, 1.0 GiB dev, and 2.2 GiB test, so archive download is an explicit opt-in.
MagnaTagATune: A Music Annotation Benchmark from the TagATune Game
Safe-first helper
Music Auto TaggingMusic AnnotationMusic Similarity
Access pathOfficial / other
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-sa-3.0
Code license
GPL-3.0
License caution
The original TagATune details page says the data is CC BY-NC-SA 3.0 except scripts released under GPL v3, enabling non-commercial research redistribution. Audio clips are Magnatune excerpts with artist/album URLs for purchase or commercial licensing.
Download notes
City University MIRG hosts metadata, annotations, comparisons, Echo Nest features, and three 1 GiB MP3 split archives. The helper downloads CSV metadata by default and makes features/audio explicit opt-ins.
MELD: A Multimodal Multi-Party Dataset for Emotion Recognition in Conversations
Safe-first helper
Speech Emotion RecognitionMultimodal Emotion RecognitionDialogue Emotion RecognitionSentiment Analysis+1 more
Access pathHugging Face
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
gpl-3.0
Code license
GPL-3.0
License caution
GitHub and the Hugging Face dataset card list GPL-3.0. MELD clips are derived from the Friends TV series, so downstream users should re-check media rights and any fair-use/research assumptions before redistribution or commercial use.
Download notes
The helper downloads official project, README, license, and dataset-card metadata by default. Raw audio/video tarballs and extracted feature/model tarballs are opt-in because they are larger and include TV-derived media clips.
MInDS-14: Multilingual and Cross-Lingual Intent Detection from Spoken Data
Safe-first helper
Spoken Language UnderstandingIntent ClassificationAutomatic Speech RecognitionMultilingual Speech Understanding
Access pathHugging Face
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
Hugging Face dataset card lists CC BY 4.0 and exposes 14 spoken e-banking intents across 14 language varieties. No separate code license was identified for the dataset card.
Download notes
The helper downloads the Hugging Face dataset card by default. Dataset snapshots include audio and are opt-in; choose one locale such as en-US or all with MINDS14_CONFIG.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
not_specified_on_official_page
Code license
not_applicable
License caution
Official MIR Lab page has direct downloads but no visible license statement; its MIR-1K.rar URL returned 404 on 2026-07-09. Figshare mirror lists CC BY 4.0.
MLS: A Large-Scale Multilingual Dataset for Speech Research
Safe-first helper
Multilingual AsrAsrLanguage ModelingLimited Supervision Asr
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
OpenSLR SLR94 lists CC BY 4.0. MLS is derived from LibriVox audiobooks and provides public-file-hosted archives plus MD5 checksums.
Download notes
OpenSLR links original FLAC and compressed OPUS archives for English, German, Dutch, French, Spanish, Italian, Portuguese, and Polish; archives range from about 1.6 GiB to multiple TiB, so the helper downloads only the page and checksums by default and requires MLS_DOWNLOAD_ARCHIVES=1 for audio.
The Multilingual TEDx Corpus for Speech Recognition and Translation
Safe-first helper
Multilingual AsrSpeech To Text TranslationSpeech TranslationSentence Level Alignment
Access pathOpenSLR
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_specified
License caution
OpenSLR SLR100 lists CC BY-NC-ND 4.0. The corpus is derived from TEDx Talks; respect TED/TEDx source terms as well as the corpus license.
Download notes
OpenSLR SLR100 hosts ASR-only language archives, speech-translation language-pair archives, IWSLT 2021 test sets, and a small French talk gender annotation CSV. Archives are multi-GiB, so the helper downloads only the OpenSLR page and small CSV by default and requires MTEDX_DOWNLOAD_ARCHIVES=1 for archive downloads.
Music Auto TaggingMusic Genre ClassificationMusical Instrument RecognitionMusic Mood Theme Recognition+1 more
Access pathZenodo
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-sa-4.0
Code license
Apache-2.0
License caution
The GitHub README says repository metadata is CC BY-NC-SA 4.0, code is Apache-2.0, audio files keep individual Creative Commons licenses listed in audio_licenses.txt, and the dataset is made available solely for non-commercial research and academic use unless Jamendo grants separate authorization.
Download notes
The helper clones or updates the official metadata/scripts repository by default and saves Zenodo record metadata. The upstream downloader can fetch very large archives: raw_30s audio is about 508 GiB, raw_30s audio-low is about 156 GiB, and autotagging_moodtheme audio-low is about 46 GiB, so media downloads require MTG_JAMENDO_DOWNLOAD_MEDIA=1.
Voice Activity DetectionMusic Speech DiscriminationSpeech Music Noise ClassificationSpeaker Recognition Augmentation
Access pathOpenSLR
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
OpenSLR SLR17 lists Attribution 4.0 International (CC BY 4.0). The paper describes MUSAN as music, speech, and noise recordings released under a flexible Creative Commons license.
Download notes
OpenSLR lists the corpus archive as 11 GiB. The helper downloads the OpenSLR landing page by default and requires MUSAN_DOWNLOAD_ARCHIVE=1 for the large archive.
Music Source SeparationSinging Voice SeparationAudio Source Separation
Access pathZenodo
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
other-non-commercial
Code license
MIT
License caution
Zenodo lists "Other (Non-Commercial)" and the official pages state educational/academic use only, with commercial use requiring copyright-holder permission. Track sources include DSD100/Mixing Secrets, MedleyDB CC BY-NC-SA 4.0, Native Instruments stems, and Easton Ellises/Heise CC BY-NC-SA 3.0 material.
Download notes
The helper saves the official SigSep and Zenodo pages by default. The 4.7 GiB compressed STEMS archive and 22.7 GiB uncompressed HQ archive require explicit terms acknowledgement and opt-in.
MusicNet: A Dataset for Music Transcription and Multi-label Classification
Safe-first helper
Music TranscriptionMulti Label Music ClassificationNote Onset LabelingMusical Instrument Recognition+1 more
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
Zenodo lists CC BY 4.0 for the MusicNet release. The record says audio recordings are Creative Commons licensed and Public Domain performances from the Isabella Stewart Gardner Museum, the European Archive Foundation, and Musopen, with per-recording provenance described in the metadata.
Download notes
The helper saves the Zenodo record JSON and 44 KiB metadata CSV by default. Reference MIDI files are a small opt-in download, while the full audio/label archive is about 10.3 GiB and requires MUSICNET_DOWNLOAD_AUDIO=1.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
MIT
License caution
The GitHub README says the corpus is provided under the original terms of the source speech and noise samples, generally non-commercial research with some subsets permitting commercial use; individual README/license files inside the archive should be checked. The Zenodo record reports license id other-at, and model weights are CC BY-NC-SA 4.0.
Download notes
The helper downloads the official README, corpus wiki markdown, model-weight license, and Zenodo record JSON by default. The full NISQA_Corpus.zip archive is about 15.9 GB and requires NISQA_DOWNLOAD_CORPUS=1.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
Apache-2.0
License caution
Official Magenta dataset page lists the dataset under CC BY 4.0; Magenta code is Apache-2.0.
Download notes
The full TFDS download is about 73 GiB. The helper saves the official dataset page by default and requires NSYNTH_DOWNLOAD_ARCHIVES=1 before downloading split archives.
OpenMIC-2018: An Open Dataset for Multiple Instrument Recognition
Safe-first helper
Musical Instrument RecognitionMusic Auto TaggingMulti Label Audio ClassificationMusic Information Retrieval
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
Zenodo says Spotify AB releases the dataset under CC BY 4.0 and includes full license terms in the archive. The included metadata contains licenses for each audio recording, so check per-track metadata before redistribution or commercial use.
Download notes
The Zenodo archive is about 2.6 GiB and contains 10-second OGG clips, VGGish features, crowd-sourced labels, metadata with per-recording licenses, and train/test partitions. The helper saves the Zenodo record JSON and official README by default and requires OPENMIC_DOWNLOAD_ARCHIVE=1 before downloading the full archive.
Pansori-TEDxKR: Korean Speech Corpus Generated from Korean Language TEDx Talks
Safe-first helper
Korean AsrSpeech TranscriptionSubtitle Aligned Speech Recognition
Access pathOpenSLR
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_specified
License caution
OpenSLR lists Creative Commons BY-NC-ND 4.0. The corpus is derived from TEDx talks, so downstream use should also respect TED/TEDx source terms and original media rights.
Download notes
OpenSLR SLR58 hosts about 3 hours of Korean TEDx speech from 41 speakers with subtitle-boundary segmentation and manual alignment checks. The helper downloads the OpenSLR page, about page, info, and checksum by default; the 174 MB corpus archive is opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_applicable
License caution
OpenSLR lists Attribution-NonCommercial-NoDerivatives 4.0 International and describes the corpus as free for academic use. Re-check upstream terms before redistribution or commercial use.
Download notes
OpenSLR hosts a 9.0 GiB Mandarin speech/transcript archive recorded from 296 native Chinese speakers. The helper saves the OpenSLR page by default and makes the full archive an explicit opt-in.
The Ryerson Audio-Visual Database of Emotional Speech and Song
Safe-first helper
Speech Emotion RecognitionAudio Visual Emotion RecognitionActed Emotional SpeechEmotional Song Recognition
Access pathZenodo
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-sa-4.0
Code license
not_applicable
License caution
Zenodo lists CC BY-NC-SA 4.0 for the dataset and says commercial licenses are available separately. The linked PLOS ONE paper itself is CC BY, but that article license is not the dataset license.
Download notes
The helper downloads the Zenodo metadata JSON by default. The audio-only speech and song ZIPs are about 215 MB and 198 MB respectively; video archives are much larger and are not downloaded by default.
Spoken Language UnderstandingAutomatic Speech RecognitionNamed Entity RecognitionNamed Entity Localization+1 more
Access pathHugging Face
Upstream termsOpen / attribution signals
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
SLUE-VoxPopuli is CC0; SLUE-VoxCeleb is CC BY 4.0; HF dataset metadata also advertises cc0-1.0 and cc-by-4.0 tags.
Code license
MIT
License caution
SLUE redistributes curated subsets of VoxPopuli and VoxCeleb plus task annotations. The VoxCeleb license notice says original and cropped video copyrights remain with the original owners.
Download notes
The helper downloads official toolkit docs and component license files by default. Hugging Face dataset snapshots are opt-in because they contain audio-derived benchmark data; use SLUE_DATASETS to choose slue, slue-phase-2, or both.
SLURP: A Spoken Language Understanding Resource Package
Safe-first helper
Spoken Language UnderstandingIntent ClassificationSlot FillingSemantic Entity Labeling
Access pathZenodo
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
Textual annotations are CC BY 4.0; Zenodo-hosted audio is non-commercial (Zenodo license id other-nc; GitHub README states CC BY-NC 4.0).
Code license
not_specified
License caution
GitHub README separates textual data and audio licensing and says a less-strict audio license may be available by contacting the dataset owner. No standalone code license file was found in the repo via raw GitHub on 2026-07-09.
Download notes
The helper clones or updates the official annotation/code repository by default and downloads Zenodo LICENSE.txt. Audio archives are about 3.9 GiB real plus 2.8 GiB synthetic, so audio download is an explicit opt-in.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
Zenodo v2.3 lists CC BY 4.0 and the record README says the SONYC-UST dataset is offered under Creative Commons Attribution 4.0 International. Challenge rules also restrict private external data for reproducible task submissions.
Download notes
The helper downloads Zenodo record JSON plus README, annotations, taxonomy, and unpack script by default. Audio is split across 19 archive shards totaling about 12.8 GiB, so audio download is an explicit opt-in.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
gated_academic_research_internal_use
Code license
not_specified
License caution
HF terms say the content is for academic research purposes and internal use only, prohibit redistribution without prior written consent, and include additional restrictions on creating competing databases/products and identifying individuals.
Download notes
Hugging Face access requires logging in and accepting Kensho terms. The HF card lists split sizes from 11 GiB for dev/test to 530 GiB for the L training subset; the helper refuses to download until SPGISPEECH_ACK_TERMS=1 is set.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_applicable
License caution
OpenSLR SLR38 lists Creative Commons BY-NC-ND 4.0 and asks users to cite the data as "ST-CMDS-20170001_1, Free ST Chinese Mandarin Corpus." Re-check upstream terms before redistribution or commercial use.
Download notes
OpenSLR hosts an 8.2 GiB archive with cellphone-recorded Mandarin speech, transcriptions, and metadata from 855 speakers and 102,600 utterances. The helper saves the OpenSLR page by default and requires ST_CMDS_DOWNLOAD_ARCHIVE=1 for the large archive.
Speech Representation EvaluationPhoneme RecognitionAutomatic Speech RecognitionKeyword Spotting+11 more
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
mixed
Code license
Apache-2.0
License caution
S3PRL is mostly Apache-2.0, with repository notes indicating some Facebook-authored files are CC BY-NC. SUPERB tasks use multiple external datasets, so each component corpus must be downloaded and licensed through its own official source.
Download notes
SUPERB is a benchmark suite over multiple upstream corpora. The helper downloads official documentation/license files by default and only clones the S3PRL toolkit with SUPERB_CLONE_TOOLKIT=1; underlying corpora such as LibriSpeech, Speech Commands, VoxCeleb, and IEMOCAP keep their own access paths and licenses.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
custom_ldc_license
Code license
not_applicable
License caution
LDC catalog pages list membership/licensing terms and web-download access. Re-check the current LDC agreement before use or redistribution; do not treat benchmark recipes or transcripts as granting rights to the underlying audio.
Download notes
Switchboard-1 Release 2 and the 2000 HUB5 English Evaluation Speech set are distributed by LDC after login/licensing. The helper only prints official access steps because the corpus and standard evaluation audio are not publicly script-downloadable.
TAU Urban Acoustic Scenes 2019 Development dataset
Safe-first helper
Acoustic Scene ClassificationMulti Device Audio ClassificationLow Complexity Audio Classification
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
other_non_commercial
Code license
not_applicable
License caution
Zenodo record 2589280 lists license id "other-nc" without a more specific SPDX-style license. DCASE challenge and dataset terms should be checked before redistribution or commercial use.
Download notes
The helper downloads the Zenodo record JSON plus small doc/meta ZIPs by default. The 40-hour audio release is split across 21 ZIP files of roughly 1.3-1.8 GiB each, so audio download is an explicit opt-in.
TAU Urban Acoustic Scenes 2020 Mobile: Development and Evaluation datasets
Safe-first helper
Acoustic Scene ClassificationDevice Robust Audio ClassificationLow Complexity Audio Classification
Access pathZenodo
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
other_non_commercial
Code license
not_applicable
License caution
Both Zenodo development and evaluation records list "Other (Non-Commercial)" without a more specific SPDX-style license. DCASE challenge terms should be checked before redistribution or commercial use.
Download notes
The helper downloads Zenodo record JSON plus small doc/meta ZIPs by default. Development audio is split across 16 ZIP files totaling about 27.4 GiB; evaluation audio is split across 8 ZIP files totaling about 13.1 GiB, so both are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-nd-4.0
Code license
not_applicable
License caution
OpenSLR lists CC BY-NC-ND 4.0. The corpus is derived from TEDx Talks, so downstream use should also respect TED/TEDx source terms.
Download notes
OpenSLR SLR67 hosts a single 2.3 GiB archive with Spanish speech and transcripts from TEDx Talks. The helper saves the OpenSLR page by default and downloads the archive only with TEDX_SPANISH_DOWNLOAD_ARCHIVE=1.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
Apache-2.0
Code license
not_applicable
License caution
OpenSLR lists Apache License v2.0 and the resource description says the database is free to academic users. The original CSLT URL linked from OpenSLR returned 404 when checked, so use the current OpenSLR page and paper for access/provenance.
Download notes
OpenSLR SLR18 hosts a 6.4 GiB speech/transcript archive, a 1.9 GiB 0 dB noisy test archive, and a 24 MiB supplementary resource archive with lexicon/noise samples. The helper saves the OpenSLR page by default and only downloads selected archives through THCHS30_DOWNLOAD_PARTS.
Start with the helper: it prints the required form, password, license, or access-acknowledgement steps.
Access, terms & download helper
Data license / terms
custom_ldc_license
Code license
not_applicable
License caution
LDC catalog pages list licensing instructions for Subscription/Standard Members and Non-Members, web download media, and fee visibility after login. Portions are copyright 1993 Trustees of the University of Pennsylvania; consult the current LDC agreement before use or redistribution.
Download notes
LDC distributes TIMIT by web download after login/licensing. The helper only prints official access steps because the corpus is paid/licensed and not publicly script-downloadable.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc
Code license
not_applicable
License caution
Zenodo lists CC BY-NC 4.0. The official Urban Sound site says UrbanSound/UrbanSound8K are free for non-commercial use under Creative Commons BY-NC 3.0; Freesound attributions are included in the dataset.
Download notes
The archive is about 6 GiB and contains 8732 WAV clips pre-sorted into 10 official folds. The helper downloads citation/license metadata by default and requires URBANSOUND8K_DOWNLOAD_AUDIO=1 for the full archive.
CSTR VCTK Corpus: English Multi-speaker Corpus for CSTR Voice Cloning Toolkit
Safe-first helper
Text To SpeechSpeech SynthesisVoice CloningMulti Speaker Speech Synthesis+1 more
Access pathOfficial / other
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
The official VCTK README and DataShare license_text identify Creative Commons Attribution 4.0 International. The newspaper text source was used with permission from Herald & Times Group.
Download notes
The official DataShare ZIP is about 10.94 GiB. The helper saves the official README and license text by default and requires VCTK_DOWNLOAD_ARCHIVE=1 before downloading the archive.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
Official VGG page and repository license file list the dataset as CC BY 4.0 for commercial/research use, while copyright remains with original video owners. Re-check YouTube availability and upstream media terms before reconstructing clips.
Download notes
The official VGG page currently says the original dataset download links are no longer available from that website. The helper downloads the official CSV metadata, license, and optional pretrained model files only; it does not fetch or redistribute YouTube media.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_applicable
License caution
Edinburgh DataShare metadata lists Creative Commons Attribution 4.0 International Public License. The corpus derives clean speech from VCTK and noises from DEMAND plus speech-shaped/babble sources; re-check component/source terms before redistribution.
Download notes
The DataShare record exposes paired clean/noisy train and test ZIPs plus text/log files. The helper saves public metadata and license by default; text files and multi-GB audio archives are explicit opt-ins.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
not_specified_for_original_media
Code license
not_applicable
License caution
Official VGG pages say provided VoxCeleb/VoxCeleb2 metadata is CC BY-SA 4.0 and the corpora consist of YouTube URLs with timestamps; original media rights and privacy terms remain with upstream owners. OpenSLR SLR49 lists its small metadata resource as not copyrighted.
Download notes
Official VGG pages currently say VoxCeleb1 and VoxCeleb2 audio, URL/timestamp, and identifying metadata files are no longer available from that website. The helper downloads small OpenSLR speaker-recognition recipe metadata and trial lists only; it does not fetch the original audio/video.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-4.0
Code license
not_specified
License caution
The official page and repository README say VoxConverse is available for research purposes under CC BY 4.0, while copyright remains with the original video owners. The GitHub repository does not expose a standalone license file through the API.
Download notes
The helper clones or updates the official annotation repository and saves the official page by default. The official page lists dev/test WAV ZIPs with MD5 checksums; audio downloads are explicit opt-ins because the dev ZIP is about 1.9 GiB and the test ZIP is also large.
VoxLingua107: a Dataset for Spoken Language Recognition
Safe-first helper
Spoken Language IdentificationLanguage RecognitionSpeech Classification
Access pathHugging Face
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-4.0
Code license
not_specified
License caution
The TalTechNLP Hugging Face dataset card lists cc-by-nc-4.0. The dataset is built from YouTube-derived speech segments, so source-media availability and platform terms still apply; the SpeechBrain recipe repository did not expose a detected license.
Download notes
The paper reports 6628 hours across 107 languages plus a 1609-utterance verified evaluation set. The helper downloads small Hugging Face metadata files by default and requires VOXLINGUA107_DOWNLOAD_HF=1 before attempting the larger mirrored dataset snapshot. The original TalTech host was not reliably reachable during the 2026-07-09 check, so verify upstream availability before large downloads.
VoxPopuli: A Large-Scale Multilingual Speech Corpus for Representation Learning, Semi-Supervised Learning and Interpretation
Safe-first helper
Multilingual AsrSpeech To Text TranslationSelf Supervised Speech Representation LearningAccented Speech Recognition
Access pathHugging Face
Upstream termsOpen / attribution signals
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc0-1.0
Code license
cc-by-nc-4.0
License caution
Official repo lists VoxPopuli data as CC0 and points users to the European Parliament legal notice for raw data; code and pretrained models are CC BY-NC 4.0.
Download notes
HF hosts converted Parquet shards and is about 673 GiB total; select a language/config and split before downloading.
WavCaps: A ChatGPT-Assisted Weakly-Labelled Audio Captioning Dataset for Audio-Language Multimodal Research
Safe-first helper
Audio CaptioningAudio Language RetrievalAudio Language ModelingZero Shot Audio Classification
Access pathHugging Face
Upstream termsNon-commercial / research terms
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
academic_only
Code license
not_specified
License caution
The GitHub README and Hugging Face card say only academic uses are allowed for WavCaps audio. The HF metadata advertises CC BY 4.0, but the dataset card also points users to component source terms for FreeSound, BBC Sound Effects, SoundBible, and AudioSet; re-check those source licenses before redistribution or commercial use. Provided models are described as non-commercial research under a UK data copyright exemption.
Download notes
The Hugging Face repository exposes JSON metadata and split FLAC waveform ZIPs for FreeSound, BBC Sound Effects, SoundBible, and AudioSet SL. The full repository is hundreds of GiB, so the helper downloads README/JSON metadata by default and requires WAVCAPS_DOWNLOAD_ZIPS=1 plus WAVCAPS_ZIP_SOURCES for waveform archives.
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
cc-by-nc-4.0
Code license
not_specified
License caution
The official WHAM page states the WHAM! and WHAM!48kHz noise datasets are CC BY-NC 4.0. Generated mixtures also depend on WSJ0/wsj0-2mix licensing, so redistribution or commercial use requires checking those upstream terms too.
Download notes
The helper downloads the official landing page and small WHAM!/WHAMR! generation script archives by default. WHAM! noise is 17 GiB compressed and WHAM!48kHz is 68.1 GiB compressed, so those archives are explicit opt-ins. Building full WHAM!/WHAMR! mixtures also requires separately licensed WSJ0/wsj0-2mix access.
wsj0-mix: Single-channel multi-speaker speech separation mixtures from WSJ0
Safe-first helper
Speech SeparationMulti Speaker Speech SeparationSource SeparationCocktail Party Speech Separation
Access pathLDC / licensed
Upstream termsMixed / custom — review
The helper starts with public documentation or metadata and keeps large or restricted downloads opt-in.
Access, terms & download helper
Data license / terms
ldc_restricted_derived
Code license
MERL script license not specified on the reachable page; pywsj0-mix is MIT.
License caution
The generated mixtures derive from the LDC CSR-I WSJ0 corpus, so access, use, and redistribution must follow the active LDC agreement. The MERL page provides scripts but does not publish the audio mixtures or a standalone data license.
Download notes
The helper downloads the official MERL page and generation scripts by default and can clone the MIT-licensed Python generator. It does not download WSJ0 audio; generation requires an already licensed local WSJ0 corpus from LDC and explicit WSJ0_2MIX_RUN_GENERATION=1.
Try a broader task family or remove a search term.
From catalog to evidence
Use a benchmark to make a model decision
Choose a compatible benchmark here, turn examples into evaluation cases, and make small task-specific changes to the adapter and scoring rubric. Open Audio Judge’s ASR and TTS demos show the same case-to-report workflow end to end.
01
Choose a benchmark
Match the task, data access, and upstream terms to your use case.
02
Prepare cases
Map benchmark examples into references, audio inputs, and metadata.
03
Adapt the rubric
Keep the workflow; adjust the adapter and scoring criteria for the task.
04
Compare & inspect
Run candidate models, summarize slices, and open case-level evidence.