CPC G10L 15/063 (2013.01) [G06N 20/00 (2019.01); G10L 25/03 (2013.01); H04R 1/406 (2013.01)] | 21 Claims |
1. A computer-implemented method, executed on a computing device, comprising:
defining a model representative of a plurality of acoustic variations to a speech signal, thus defining a plurality of time-varying spectral modifications, wherein defining the model representative of the plurality of acoustic variations to the speech signal includes defining a model representative of a plurality of acoustic variations to the speech signal dependent upon variations in a beampattern of an adaptive beamformer and movement of a plurality of sound sources relative to a beam of the adaptive beamformer; and
applying the plurality of time-varying spectral modifications to a plurality of feature coefficients of a target domain of a reference signal, thus generating a plurality of time-varying spectrally-augmented feature coefficients of the reference signal.
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