| CPC G10L 21/0232 (2013.01) [G10L 25/18 (2013.01); G10L 25/30 (2013.01); G10L 2021/02082 (2013.01); G10L 21/0224 (2013.01)] | 20 Claims |
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1. A computer-implemented method comprising:
receiving, by a filter of an adaptive filter system, an input audio signal, wherein the input audio signal is a far-end audio signal, the filter including a transfer function with adaptable filter weights for modeling an acoustic environment;
generating, by the filter, a response audio signal, the response audio signal modeling the input audio signal passing through the acoustic environment;
receiving a target response signal produced from the input audio signal passing through the acoustic environment, the target response signal including the input audio signal and near-end audio signals;
calculating an adaptive filter loss using the response audio signal and the target response signal;
generating, by a trained recurrent neural network of the adaptive filter system, a filter weight update using the calculated adaptive filter loss;
updating the adaptable filter weights of the transfer function using the filter weight update to create an updated transfer function;
generating, by the filter, an updated response audio signal based on the updated transfer function; and
providing the updated response audio signal as an output audio signal.
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