Patent ID: 9698744
Date: 2017-07-04
CPC Classifications: G10L,H03G,H04R

Claim:
1. A method for processing an audio signal in an audio processing apparatus, the method comprising: receiving the audio signal, the audio signal comprising at least one channel of audio content; dividing the audio signal into a plurality of subband signals, each of the plurality of subband signals including at least one subband sample; deriving a characteristic of the audio signal, wherein the characteristic is a power measure of the audio signal; smoothing the power measure to generate a smoothed power measure of the audio signal; detecting a location of an auditory event boundary by monitoring the smoothed power measure, wherein an audio portion between consecutive auditory event boundaries constitutes an auditory event, generating a gain vector based on the location of the auditory event boundary; and applying the gain vector to the audio signal, wherein the detecting further includes applying a threshold to the smoothed power measure to detect the location of the auditory event boundary, wherein the detecting further includes comparing the smoothed power measure with a second smoothed power measure of the audio signal, wherein the power measure or the second power measure is based on a difference measure, wherein auditory event is associated with a transient, and wherein the audio processing apparatus is implemented at least in part with hardware.