Datasets:
pretty_name: LibriVox Mirror
language: multilingual
license: cc-by-4.0
task_categories:
- automatic-speech-recognition
- text-to-speech
tags:
- audio
- librivox
- public-domain
- webdataset
- datasets
configs:
- config_name: preview
default: true
data_files:
- split: train
path: metadata/preview/*.parquet
- config_name: sections
data_files:
- split: train
path: metadata/sections/*.parquet
- config_name: books
data_files:
- split: train
path: metadata/books/*.parquet
LibriVox Mirror
Fast, structured, continuously updated LibriVox audio mirror.
Current snapshot
| Metric | Value |
|---|---|
| Published books | 21,831 |
| Published sections | 495,662 |
| Audio hours | 133,305.4 |
| Audio languages | 86 |
| Quarantined books | 534 |
| Last updated (UTC) | 2026-11-04T16:19:40.424326Z |
Audio by language
| Language | Hours |
|---|---|
| English | 132,356.0 |
| German | 417.0 |
| Spanish | 160.9 |
| French | 103.8 |
| Portuguese | 37.4 |
| Polish | 34.1 |
| Dutch | 25.8 |
| Italian | 22.5 |
| Chinese | 14.7 |
| Japanese | 13.9 |
| Ukrainian | 12.1 |
| Danish | 11.6 |
| Russian | 11.1 |
| Hindi | 9.2 |
| Arabic | 8.9 |
| Latin | 7.3 |
| Catalan | 5.1 |
| Esperanto | 5.0 |
| Romanian | 4.9 |
| Hebrew | 4.5 |
| Greek | 3.3 |
| Swedish | 2.1 |
| Finnish | 2.0 |
| Multilingual | 1.8 |
| Ancient Greek | 1.8 |
| Javanese | 1.7 |
| Hungarian | 1.6 |
| Tagalog | 1.6 |
| Old English | 1.5 |
| Yiddish | 1.4 |
| Persian/Farsi | 1.3 |
| Urdu | 1.3 |
| Galician | 1.2 |
| Norwegian | 1.1 |
| Luxembourgish | 1.0 |
| Bulgarian | 1.0 |
| Afrikaans | 0.8 |
| Indonesian | 0.8 |
| Czech | 0.7 |
| Marathi | 0.7 |
| Slovenian | 0.7 |
| Sanskrit | 0.6 |
| Tamil | 0.6 |
| Kapampangan | 0.5 |
| Latvian | 0.5 |
| Middle English | 0.5 |
| Braj | 0.5 |
| Balinese | 0.4 |
| Malay | 0.4 |
| Minangkabau | 0.4 |
| Cantonese Chinese | 0.4 |
| Buginese | 0.4 |
| Acehnese | 0.4 |
| Sundanese | 0.3 |
| Serbian | 0.3 |
| Bengali | 0.3 |
| Oriya | 0.3 |
| Nynorsk | 0.3 |
| Volapük | 0.3 |
| Occitan | 0.2 |
| Walloon | 0.2 |
| Korean | 0.2 |
| Western Frisian | 0.2 |
| Croatian | 0.2 |
| Slovak | 0.2 |
| Maori | 0.2 |
| Turkish | 0.2 |
| Faroese | 0.2 |
| Bisaya/Cebuano | 0.2 |
| Old Javanese | 0.1 |
| Rajasthani | 0.1 |
| Nepali | 0.1 |
| Irish | 0.1 |
| Garo | 0.1 |
| Old Norse | 0.1 |
| Scottish Gaelic | 0.1 |
| Lithuanian | 0.1 |
| Welsh | 0.0 |
| Macedonian | 0.0 |
| Maltese | 0.0 |
| Old Sundanese | 0.0 |
| Assamese | 0.0 |
| Low German | 0.0 |
| Belarusian | 0.0 |
| Palatine German | 0.0 |
| Old Tupi | 0.0 |
Dataset structure
The default preview config contains a bounded set of browser-playable original
MP3s. Full sections and books indexes remain typed Parquet; canonical audio is
streamed from WebDataset shards under data/.
Use language and hash_partition to construct stable downstream subsets or
evaluation splits. Source metadata features preserve unmodeled LibriVox and
Internet Archive fields for provenance.
License and attribution
The copyrightable mirror-specific compilation, curation, normalized metadata, indexes, and documentation are licensed under CC BY 4.0. Please cite this dataset when using those parts. Original LibriVox audio remains public domain in the United States and is not relicensed by this mirror. Rules may differ by jurisdiction.
Citation
@misc{ding2026librivoxmirror,
author = {James Ding},
title = {LibriVox Mirror},
year = {2026},
publisher = {Hugging Face},
howpublished = {\url{https://huggingface.co/datasets/twangodev/librivox-mirror}},
note = {Continuously updated dataset}
}
Provenance and integrity
Each sample links to its LibriVox project and exact Internet Archive source file. Upstream checksums and a mirror SHA-256 are preserved, and audio is not transcoded.