Apparatus and Method for Beamforming to Obtain Voice and Noise Signals

摘要

One method of operation includes beamforming a plurality of microphone outputs to obtain a plurality of virtual microphone audio channels. Each virtual microphone audio channel corresponds to a beamform. The virtual microphone audio channels include at least one voice channel and at least one noise channel. The method includes performing voice activity detection on the at least one voice channel and adjusting a corresponding voice beamform until voice activity detection indicates that voice is present on the at least one voice channel. Another method beamforms the plurality of microphone outputs to obtain a plurality of virtual microphone audio channels, where each virtual microphone audio channel corresponds to a beamform, and with at least one voice channel and at least one noise channel. The method performs voice recognition on the at least one voice channel and adjusts the corresponding voice beamform to improve a voice recognition confidence metric.

主权项

1. A method comprising:
beamforming a plurality of microphone outputs to obtain at least one virtual microphone channel; performing voice recognition on the at least one virtual microphone channel; and adjusting a corresponding beamform until voice recognition indicates one of the presence of voice on the at least one virtual microphone channel or that voice is not substantially present on the at least one virtual microphone channel.