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Preprint

MLS: A Large-Scale Multilingual Dataset for Speech Research

Vineel Pratap et al., arXiv (Computation and Language), 2020

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Read on October 17, 2026

What it is
The paper that introduced Multilingual LibriSpeech, a corpus of read audiobooks in eight European languages, with about 44.5 thousand hours of English and about 6 thousand hours in the other languages.
How much weight it carries
A preprint from Facebook AI Research describing a public dataset that is widely used as a benchmark. The hours are approximate totals given in the abstract. The data is read audiobook speech, the same genre as LibriSpeech.

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