APPARATUSES AND METHODS FOR ACOUSTIC CHANNEL AUTO-BALANCING DURING MULTI-CHANNEL SIGNAL EXTRACTION

摘要

Systems and methods are described to automatically balance acoustic channel sensitivity. A long-term power level of a main acoustic signal is calculated to obtain an averaged main acoustic signal. Segments of the main acoustic signal are excluded from the averaged main acoustic signal using a desired voice activity detection signal. A long-term power level of a reference acoustic signal is calculated to obtain an averaged reference acoustic signal. Segments of the reference acoustic signal are excluded from the averaged reference acoustic signal using a desired voice activity detection signal. An amplitude correction signal is created using the averaged main acoustic signal and the averaged reference acoustic signal.

主权项

1. A method to automatically balance acoustic channel sensitivity, comprising:
calculating a long-term power level of a main acoustic signal to obtain an averaged main acoustic signal, wherein segments of the main acoustic signal are excluded from the averaged main acoustic signal using a desired voice activity detection signal; calculating a long-term power level of a reference acoustic signal to obtain an averaged reference acoustic signal, wherein segments of the reference acoustic signal are excluded from the averaged reference acoustic signal using the desired voice activity detection signal; and creating an amplitude correction signal using the averaged main acoustic signal and the averaged reference acoustic signal.