Patent ID: 9406302
Filing Date: 2016-08-02
CPC Classification: G10L

Claim Text:
1. A method for processing a multi-channel audio signal, the multi-channel audio signal carrying a plurality of audio channel signals, the method comprising: determining a time-scaling position using the plurality of audio channel signals; time-scaling each audio channel signal of the plurality of audio channel signals according to the time-scaling position to obtain a plurality of time scaled audio channel signals; extracting a first set of spatial cue parameters from the plurality of audio channel signals, the first set of spatial cue parameters relating to a difference measure of a difference between the plurality of audio channel signals and a reference audio channel signal derived from at least one of the plurality of audio channel signals; extracting a second set of spatial cue parameters from the plurality of time scaled audio channel signals, the second set of spatial cue parameters relating to the same type of difference measure as the first set of spatial cue parameters relates to, wherein the second set of spatial cue parameters relates to a difference between the plurality of time scaled audio channel signals and a reference time scaled audio channel signal derived from at least one of the plurality of time scaled audio channel signals; and determining whether the second set of spatial cue parameters fulfills with regard to the first set of spatial cue parameters a quality criterion.