Patent ID: 9584083
Date: 2017-02-28
CPC Classifications: H03G,H04R,H04S

Claim:
1. A method for processing an audio signal having at least a first channel and a second channel, the method comprising: determining a first gain to scale a loudness of the first channel from a first loudness to a second loudness, each of the first loudness and the second loudness being a respective value of a nonlinear function of a power of the first channel; and determining a second gain to scale a loudness of the second channel from a third loudness to a fourth loudness, each of the third loudness and the fourth loudness being a respective value of a nonlinear function of a power of the second channel; wherein the first gain and the second gain are selected so that a first ratio between the second loudness and the first loudness equals a second ratio between the fourth loudness and the third loudness; where the method is performed by one or more computing devices.