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2016

Trainable Frontend For Robust and Far-Field Keyword Spotting

Wang, Yuxuan, Getreuer, Pascal, Hughes, Thad et al.

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Robust and far-field speech recognition is critical to enable true hands-free communication.

In far-field conditions, signals are attenuated due to distance.
To improve robustness to loudness variation, we introduce a novel frontend called per-channel energy normalization (PCEN).
The key ingredient of PCEN is the use of an automatic gain control based dynamic compression to replace the widely used static (such as log or root) compression.

Trainable Frontend For Robust and Far-Field Keyword Spotting · Around

Built on

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C.-P. Chen and J. A. Bilmes, “MVA processing of speech features,”
2007
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