Patent ID: 7716042
Filing Date: 2010-05-11
Classification: G10L

Abstract:
1. A device for coding an audio signal of a sequence of audio values into a coded signal, comprising: a processor for applying a psycho-acoustic model to a first block of audio values of the sequence of audio values and a second block of audio values of the sequence of audio values; a calculator for calculating a version of a first parameterization of a parameterizable filter based on a result of applying the psycho-acoustic model to the first block and a version of a second parameterization of the parameterizable filter based on a result of applying the psycho-acoustic model to the second block; a filter for filtering a predetermined block of audio values of the sequence of audio values with the parameterizable filter using a predetermined parameterization which in a predetermined manner depends on the version of the second parameterization to obtain a block of filtered audio values corresponding to the predetermined block; a quantizer for quantizing the filtered audio values to obtain a block of quantized filtered audio values; a processor for forming a combination of the version of the first parameterization and the version of the second parameterization including at least a difference between the version of the first parameterization and the version of the second parameterization; and an integrator for integrating information being indicative of the quantized filtered audio values and a version of the first parameterization into the coded signal, the information including the combination.