Datasets:

ltuncay
/

chime-mmau-pro

Error code:   DatasetGenerationError
Exception:    TypeError
Message:      int() argument must be a string, a bytes-like object or a real number, not 'NoneType'
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1539, in _prepare_split_single
                  for key, record in generator:
                                     ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 621, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 131, in _generate_examples
                  for example_idx, example in enumerate(self._get_pipeline_from_tar(tar_path, tar_iterator)):
                                              ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 32, in _get_pipeline_from_tar
                  for filename, f in tar_iterator:
                                     ^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/track.py", line 49, in __iter__
                  for x in self.generator(*self.args):
                           ~~~~~~~~~~~~~~^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 1419, in _iter_from_urlpath
                  with xopen(urlpath, "rb", download_config=download_config, block_size=0) as f:
                       ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 976, in xopen
                  file_obj = fs.open(paths[0], mode)
                File "<string>", line 3, in open
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1176, in __call__
                  return self._mock_call(*args, **kwargs)
                         ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1180, in _mock_call
                  return self._execute_mock_call(*args, **kwargs)
                         ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1247, in _execute_mock_call
                  result = effect(*args, **kwargs)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 794, in wrapped
                  tracker.files[urlpath] = {"read": 0, "size": int(f.size)}
                                                               ~~~^^^^^^^^
              TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1379, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 956, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1401, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1579, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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End of preview.

CHIME · MMAU-Pro

This is a source-preserving prepared candidate, not a scientifically admitted CHIME benchmark release. It repackages the selected upstream release into split-specific WebDataset TAR shards with native audio and per-example JSON. A Parquet index permits metadata filtering without downloading audio shards.

Source and selected scope

Upstream: MMAU-Pro.
Pinned source release: b8516c217464d53be36d6dc334fda3cd578ed103.
Selection: Author provides public gold questions and native WAV archive; download the exact archive but prepare a deterministic bounded question-group subset.
Original license/access conditions: CC-BY-NC-4.0 (author pinned dataset card); original source provenance and notices retained. Public ungated author repository, immutable commit and per-object source checksum.
Source notes: Acquire only pinned objects. Preserve native audio and raw source labels. Subset and quality rules are in the matching decision; scientific admission is pending. Preparation amendment2026-10-29: exact frozen native audio occupies10,303,517,280 PCM bytes, so PCM allocation is11GB; all868 frozen questions/1019 assets retained.

Original authors, licensors and recording contributors retain their rights. This preparation was assembled for public noncommercial research access; this repository does not grant broader rights than the original sources. Preserve per-recording attribution and notices. provenance/ contains original annotations/docs/licenses, source provenance and the redistribution audit. FSD50K/Clotho audio has per-recording terms; Clotho captions retain the complete custom Tampere experimental/noncommercial license. The CHIME code license does not apply to these data.

Representation and preservation

There are 5,787 audio assets, 57,436,900,776 stored-audio bytes and 57,436,622,136 decoded-PCM-equivalent bytes. Native sample rate, duration and channel count are retained. No loudness normalization, silence trimming, resampling or downmixing is applied.

Every audio payload uses WAV (including WAVEX/RF64). Existing WAV bytes are retained. Other source codecs are decoded once into sample-exact integer or floating-point WAV; floating-point WAV avoids quantizing MP3/Vorbis decoder output. Every converted frame is read back and its float64 sample digest compared with the original decoder. The source encoding/hash and decoder version remain in each converted record's container_standardization metadata. Sampling rate, frame count, channel count, annotations and sample keys are unchanged. Each payload is accompanied by <key>.json in an ordinary TAR. The JSON contains split, stored audio metadata, provenance, source groups and source targets. manifest.jsonl also records shard/member offsets and checksums. metadata.parquet provides audio and shard columns, common source/group/license columns, and exact arbitrary annotations in metadata_json (decode with json.loads). It does not duplicate audio payloads. Keeping heterogeneous annotations as JSON preserves empty objects and differing target schemas without Arrow type coercion. release.json hashes the audio shards and record manifest, and publication.json inventories all published files including attribution assets.

CHiME-3 background recordings interleave six synchronized native mono PCM16 channels into one six-channel PCM16 WAV per session, with exact decoded-sample checks and an explicit channel map. The excluded CHiME speech corpus is not included. Container standardization preserves decoded samples exactly; source encoded bytes differ for converted assets.

Source splits

test: 5,787 original audio assets.

These are original source partitions or explicitly unspecified/background partitions. ESC-50 retains five official folds; no fixed benchmark train/test assignment is invented. VocalSet's split is the supplied technique-classification singer protocol, not a universal task protocol. Background noise is not converted into artificial word or silence examples. Linked views/channels share provenance groups.

Scientific limitations

Scientific admission remains pending. Native file integrity and packaging checks do not establish label correctness, perceptual deduplication, contamination freedom or benchmark validity. Existing upstream annotation errata and ambiguity are retained/documented. The source audit found declared Freesound ID overlaps within some official folds/partitions and across ESC-50, FSD50K and Clotho; FSD50K train/validation also share uploaders. Use the supplied source IDs, group metadata and provenance/source-audit.json when defining an evaluation protocol. Do not claim these candidate splits are universally leakage-free. Scores from this repository alone are not official CHIME scores.

Loading

Pin an immutable Hub commit revision in experiments. A generic Hugging Face WebDataset loader can read the shard configurations:

from datasets import load_dataset
samples = load_dataset("ltuncay/chime-mmau-pro", revision="<commit-sha>", streaming=True)

For local source-native decoding and checksum verification, use CHIME's iter_release(path, split=..., verify_hashes=True). Its audio arrays have shape [frames, channels]; the evaluated model owns its preprocessing. Download only selected shards/index files when appropriate; benchmark execution must not silently fetch data.

Provenance and citation

Cite the upstream dataset and recording authors as specified in the original documentation under provenance/. This preparation does not claim authorship of the source recordings or annotations. Exact upstream objects, checksums, release selection, preparation metadata and source URLs are recorded in release.json. Source Zenodo metadata/citations are retained when available. See the CHIME project implementation brief and scientific paper for the evolving evaluation protocol.

CHIME v1 benchmark usage

Do not train on CHIME evaluation data: 5057 records in the release split(s) test, listed one key per line in provenance/benchmark-v1/eval-keys.txt. Models submitted to CHIME must not see these recordings (or their source recordings) during pretraining or fine-tuning.

Task	Family	Metric	Folds	Train	Validation	Test (eval)
`mmau-pro-qa`	qa	exact_match	1	—	—	test

Exact per-record partition assignments (including records excluded from training because they share a source with evaluation data, and digitally silent assets) are in provenance/benchmark-v1/<task>.jsonl; the frozen task definitions are in provenance/benchmark-v1/usage.json. Splits never depend on the evaluation seed.

Downloads last month: 109

Total file size:

57.5 GB

json dict	__key__ string	__url__ string
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 740352, "member": "mmau-pro-0004c64484fc442d17a336e4888d3293.wav", "pcm_bytes": 2961408, "sample_rate": 44100, "sample_width": 4, "sha256": "f25c26590a74f9e078bf065c71efc6dc38c8735c8fd31fd9087b...	mmau-pro-0004c64484fc442d17a336e4888d3293	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 942545, "member": "mmau-pro-000d7407fd8354e58241c4eaa8cec328.wav", "pcm_bytes": 1885090, "sample_rate": 16000, "sample_width": 2, "sha256": "80409a21a7c87a434773190e59aa239a45de73095952f8e1cd1e...	mmau-pro-000d7407fd8354e58241c4eaa8cec328	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 4564486, "member": "mmau-pro-000f73154cdb8a8568224be80d1a77db.wav", "pcm_bytes": 9128972, "sample_rate": 16000, "sample_width": 2, "sha256": "752fe4c98e6252712071decc0ce17154f210f7dddcadf015c70...	mmau-pro-000f73154cdb8a8568224be80d1a77db	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 4724061, "member": "mmau-pro-0018e7683941e9a91bf65eb4ff1a76c9.wav", "pcm_bytes": 18896244, "sample_rate": 48000, "sample_width": 2, "sha256": "1212c809b67e50ebf4044858c0fd4551980e05b21b85847f6f...	mmau-pro-0018e7683941e9a91bf65eb4ff1a76c9	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 4389361, "member": "mmau-pro-005730da7afd81747bfebf0d2e82504d.wav", "pcm_bytes": 17557444, "sample_rate": 48000, "sample_width": 2, "sha256": "6c3e60af4863c0b81f295434098a66bc1f9e41492be1848db7...	mmau-pro-005730da7afd81747bfebf0d2e82504d	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 5263950, "member": "mmau-pro-0060cff88002721cf44536a849650c6b.wav", "pcm_bytes": 21055800, "sample_rate": 48000, "sample_width": 2, "sha256": "7048aad3d1ff432cbe3aea111faa96ec9446cd0307a3a2b3a7...	mmau-pro-0060cff88002721cf44536a849650c6b	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 160000, "member": "mmau-pro-0076e355c0e6d8f836bb647cc16d4d91.wav", "pcm_bytes": 640000, "sample_rate": 16000, "sample_width": 2, "sha256": "68e774b51c327e91cebf5fc433ef73fe312105121c9393817f7f4...	mmau-pro-0076e355c0e6d8f836bb647cc16d4d91	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 289042, "member": "mmau-pro-007ce965613f233115e6ccf772621c01.wav", "pcm_bytes": 578084, "sample_rate": 16000, "sample_width": 2, "sha256": "719c930ebe55e6a171b7b769dd9170f30b2710959719fc2c4a407...	mmau-pro-007ce965613f233115e6ccf772621c01	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 1981771, "member": "mmau-pro-007f519921db0239fd6695f820c09207.wav", "pcm_bytes": 3963542, "sample_rate": 16000, "sample_width": 2, "sha256": "e736c56bb61d3ef661ffa9b4fedd89087c7e3b3c87ace92104b...	mmau-pro-007f519921db0239fd6695f820c09207	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 2592000, "member": "mmau-pro-009bc67846140926571717582a6d3f25.wav", "pcm_bytes": 5184000, "sample_rate": 16000, "sample_width": 2, "sha256": "37f4746df7f6523345fec7d6d033025680ea53ca2bfe92c1364...	mmau-pro-009bc67846140926571717582a6d3f25	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 480000, "member": "mmau-pro-009d109715470376532462bee6562d5e.wav", "pcm_bytes": 960000, "sample_rate": 16000, "sample_width": 2, "sha256": "9f26a64c0ce437d9ce9cd7f5791eacdf18562ea06bd680b9e91d4...	mmau-pro-009d109715470376532462bee6562d5e	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 2640000, "member": "mmau-pro-009d6f2bdc840c673bae628f85abdf89.wav", "pcm_bytes": 5280000, "sample_rate": 16000, "sample_width": 2, "sha256": "5db139afbcc79fb24d58669b558afc8b2d53cd262b9e7eac956...	mmau-pro-009d6f2bdc840c673bae628f85abdf89	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 416000, "member": "mmau-pro-00bf46e7edd96220c77647c1977585df.wav", "pcm_bytes": 832000, "sample_rate": 16000, "sample_width": 2, "sha256": "193de5ca07d5092f906a8a62c15455f626d1952dfcd7a6d283d7e...	mmau-pro-00bf46e7edd96220c77647c1977585df	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 224000, "member": "mmau-pro-00c04b152ce3afbad000eba035eb04b3.wav", "pcm_bytes": 448000, "sample_rate": 16000, "sample_width": 2, "sha256": "04ec9eab93b7e7aa1988ca69710d2d480c9455f73b28454b5ec32...	mmau-pro-00c04b152ce3afbad000eba035eb04b3	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 192076, "member": "mmau-pro-00ca28da5b1f33020bc0686f44cff01f.wav", "pcm_bytes": 384152, "sample_rate": 16000, "sample_width": 2, "sha256": "1c6bafc8360c8bfe271fc3e9b8c406b5225b0cad95e6576ceb36d...	mmau-pro-00ca28da5b1f33020bc0686f44cff01f	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 5123994, "member": "mmau-pro-00cfcb099a4f72fc2cbdfe3b8fd40d73.wav", "pcm_bytes": 10247988, "sample_rate": 16000, "sample_width": 2, "sha256": "b9f6e2a01d20eacd1c4e61bb08f444ed73bee623982d4d943d...	mmau-pro-00cfcb099a4f72fc2cbdfe3b8fd40d73	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 512000, "member": "mmau-pro-00f1821277a863c37e7940b2910661ae.wav", "pcm_bytes": 1024000, "sample_rate": 16000, "sample_width": 2, "sha256": "ecac59d7c566881c0f5c2c6f7c871de5cec80710b246fceed67f...	mmau-pro-00f1821277a863c37e7940b2910661ae	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 6720000, "member": "mmau-pro-0111ad4db987fb340b9187c9adad3ec6.wav", "pcm_bytes": 13440000, "sample_rate": 16000, "sample_width": 2, "sha256": "69cb986dad8976f4e5d484b2108302d69657261791724cd98f...	mmau-pro-0111ad4db987fb340b9187c9adad3ec6	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 384894, "member": "mmau-pro-011907c2ad108b87f5f96abea9d11459.wav", "pcm_bytes": 769788, "sample_rate": 16000, "sample_width": 2, "sha256": "ad530d1eb22072b5806ebf4aef467c7f2530033a88eeff30a1b6f...	mmau-pro-011907c2ad108b87f5f96abea9d11459	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 1440000, "member": "mmau-pro-011cb76a5aac6fa5602de129ad30903a.wav", "pcm_bytes": 5760000, "sample_rate": 48000, "sample_width": 2, "sha256": "cafefeabe987dec8097fc2ce054d5046cd9fb724c8f39e5f626...	mmau-pro-011cb76a5aac6fa5602de129ad30903a	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 1568000, "member": "mmau-pro-011db8410ce8a38b51ed484bcdf206fd.wav", "pcm_bytes": 3136000, "sample_rate": 16000, "sample_width": 2, "sha256": "539bfda8f8f13e703a68a0b92fd3dc547da7607e529ab58a6e7...	mmau-pro-011db8410ce8a38b51ed484bcdf206fd	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 960000, "member": "mmau-pro-011e0369d808a1c73b4b4816051842e7.wav", "pcm_bytes": 3840000, "sample_rate": 48000, "sample_width": 2, "sha256": "fb839c5dc8c7b4ba9b0c0358a10237e6ef248e652fe3ac65fbb7...	mmau-pro-011e0369d808a1c73b4b4816051842e7	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 2, "format": "WAV", "frames": 27867753, "member": "mmau-pro-012613f5bad0b804c2ab1d092bc1e237.wav", "pcm_bytes": 111471012, "sample_rate": 48000, "sample_width": 2, "sha256": "08a62b919858b754c68ce36c2696c7426405ef4f69467f29...	mmau-pro-012613f5bad0b804c2ab1d092bc1e237	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
{ "audio": { "channel_order": "source_native", "channels": 1, "format": "WAV", "frames": 973971, "member": "mmau-pro-0149ace7a91f12c872301c1412269142.wav", "pcm_bytes": 1947942, "sample_rate": 44100, "sample_width": 2, "sha256": "f706583c0f12172c739a14f269bad3a2fd6fae1e18f63190cd40...	mmau-pro-0149ace7a91f12c872301c1412269142	hf://datasets/ltuncay/chime-mmau-pro@cb3c32858dbe04c1d8c0417e6f0ee6a2ab58a978/data/test/shard-000000.tar
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