Patent ID: 7729903
Filing Date: 2010-06-01
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 determiner for determining a first noise power limit based on the result of applying the psycho-acoustic model to the first block and a second noise power limit based on the result of applying the psycho-acoustic model to the second block; a processor for parameterizably filtering and scaling a predetermined block of audio values of the sequence of audio values to obtain a block of scaled filtered audio values corresponding to the predetermined block, comprising: a quantizer for quantizing the scaled filtered audio values according to the quantizing rule to obtain a block of quantized scaled filtered audio values; and an integrator for integrating information into the coded signal, the information being indicative of the block of quantized scaled filtered audio values, the version of the first parameterization, the version of the second parameterization, the first noise power limit and the second noise power limit.