Joint Phoneme Alignment and Text-Informed Speech Separation on Highly Corrupted Speech
Kilian Schulze-Forster, Clement Doire, Gaël Richard, Roland Badeau
IEEE International Conference on Acoustics, Speech, and Signal Processing, 2020
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Abstract
Speech separation quality can be improved by exploiting textual information. However, this usually requires text-to-speech alignment at phoneme level. Classical alignment methods are made for rather clean speech and do not work as well on corrupted speech. We propose to perform text-informed speech-music separation and phoneme alignment jointly using recurrent neural networks and the attention mechanism. We show that it leads to benefits for both tasks. In experiments, phoneme transcripts are used to improve the perceived quality of separated speech over a non-informed baseline. Moreover, our novel phoneme alignment method based on the attention mechanism achieves state-of-the-art alignment accuracy on clean and on heavily corrupted speech.
Audio Examples
The audio examples are taken from the test set which is described in the paper.
Example 1
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