Patent attributes
A technique for encoding a multichannel audio encoding is provided that includes quantizing a set of first LP filter coefficients for an audio signal in a first channel using a predefined first quantizer; and quantizing a set of second LP filter coefficients for an audio signal in a second channel on the basis of the quantized set of first LP filter coefficients. The quantization of the set of second LP filter coefficients includes: deriving, on basis of the quantized set of first LP filter coefficients by using a predefined predictor, a set of predicted LP filter coefficients for the audio signal in said second channel, computing prediction error as a difference between respective LP coefficients of the set of second LP filter coefficients and the set of predicted LP filter coefficients, and quantizing the prediction error.
