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Thomas C. Walters

2 accepted papers

2019

Low Bit-rate Speech Coding with VQ-VAE and a WaveNet Decoder

ICASSP 2019accepted

In order to efficiently transmit and store speech signals, speech codecs create a minimally redundant representation of the input signal which is then decoded at the receiver with the best possible perceptual quality. In this work we demonstrate that a neural network architecture based on VQ-VAE wit…

Cited by 0SourceScholar
2018

Wavenet Based Low Rate Speech Coding

ICASSP 2018accepted

Traditional parametric coding of speech facilitates low rate but provides poor reconstruction quality because of the inadequacy of the model used. We describe how a WaveNet generative speech model can be used to generate high quality speech from the bit stream of a standard parametric coder operatin…

Cited by 155SourceScholar