Patent ID: 9392379
Filing Date: 2016-07-12
CPC Classification: H04M,H04R

Claim Text:
1. A method for containing entrainment in audio processing, comprising: converting an input sound into digital, frequency domain input subband signals each having subband frequencies; producing error subband signals by subtracting estimated feedback subband signals from the input subband signals; enabling or disabling output phase modulation for each signal of the input subband signals based on at least the subband frequencies of that signal; applying the output phase modulation to adjust phase of the error subband signal corresponding to each signal of the input subband signals when the output phase modulation is enabled for that signal; processing the error subband signals; converting the processed error subband signals into an output sound; and producing the estimated feedback subband signals using a bulk delay and an adaptive filter based on the processed error subband signals.