| INTRODUCTION | |
| ============ | |
| Multilingual LibriSpeech (MLS) dataset is a large multilingual corpus | |
| suitable for speech research. The dataset is derived from read audiobooks | |
| from LibriVox and consists of 8 languages - English, German, Dutch, French, | |
| Spanish, Italian, Portuguese and Polish. | |
| STATISTICS | |
| ========== | |
| ------------------------------------------------ | |
| Language | train(hrs) | dev(hrs) | test(hrs) | |
| ------------------------------------------------ | |
| English | 44659.74 | 15.75 | 15.55 | |
| German | 1966.51 | 14.28 | 14.29 | |
| Dutch | 1554.24 | 12.76 | 12.76 | |
| French | 1076.58 | 10.07 | 10.07 | |
| Spanish | 917.68 | 9.99 | 10.00 | |
| Italian | 247.38 | 5.18 | 5.27 | |
| Portuguese | 160.96 | 3.64 | 3.74 | |
| Polish | 103.65 | 2.08 | 2.14 | |
| ------------------------------------------------ | |
| DIRECTORY STRUCTURE | |
| =================== | |
| A typical top-level directory layout | |
| . | |
| ├── metainfo.txt # Info about the LibriVox data used in the dataset (one row per chapter) | |
| ├── dev # Dev (validation) subset | |
| │ ├── segments.txt | |
| │ ├── transcripts.txt | |
| │ └── audio | |
| │ └── ... | |
| ├── test # Test subset | |
| │ ├── segments.txt | |
| │ ├── transcripts.txt | |
| │ └── audio | |
| │ └── ... | |
| ├── train # Train subset | |
| │ ├── segments.txt # LibriVox audio links and segment start/end timestamps (in sec) for each audio file | |
| │ ├── transcripts.txt # Transcripts file with audio file name as key | |
| │ ├── audio | |
| │ │ ├── 10148 # LibriVox speaker ID | |
| │ │ │ ├── 10119 # LibriVox book ID | |
| │ │ │ │ ├── 10148_10119_000000.flac # 16Khz audio file | |
| │ │ │ │ ├── 10148_10119_000001.flac | |
| │ │ │ │ └── ... | |
| │ │ │ └── ... | |
| │ │ └── ... | |
| │ └── limited_supervision # Limited supervision training sets (10 min, 1 hr and 10 hr) | |
| │ ├── 1hr # Data of the 1h split (made up of 6 folds of 10 min) | |
| │ │ ├── 0 # first 10 min fold | |
| │ │ │ └── handles.txt # List of audio handles for the split | |
| │ │ ├── ... | |
| │ │ └── 6 # last 10 min fold | |
| │ │ └── handles.txt | |
| │ └── 9hr # Remaining data of the 10h split (10h=1h+9h) | |
| │ └── handles.txt | |
| ├── LICENSE # License info | |
| └── README | |
| For more information, see the paper "MLS: A Large-Scale Multilingual Dataset for Speech Research", Vineel Pratap, Qiantong Xu, Anuroop Sriram, Gabriel Synnaeve and Ronan Collobert, INTERSPEECH 2020. | |