Patent ID: 7769178
Filing Date: 2010-08-03
Classification: G10L,H04H,H04S

Abstract:
1. An audio signal decoding method of reproducing on a second set of signals an audio signal present on a first set of signals, comprising: receiving an audio signal organized into successive temporal aperture periods in digital format on the first set of signals along with a set of digitally formatted mapping coefficients that vary for each of said aperture periods, and that, for each signal of the first set of signals, map a signal level of the audio signal onto respective signals of the second set of signals, where the mapping coefficients are defined by an encoding process that is independent of the audio signal decoding method; applying the mapping coefficients to the audio signal present on the first set of signals by multiplying, for each signal on the first set of signals, the audio signal present on the signal by its respective mapping coefficient; and summing results of the multiplications for each signal of the first set of signals.