Patent ID: 9552822
Date: 2017-01-24
CPC Classifications: G10L

Claim:
1. An apparatus for processing an audio signal, comprising: a signal processor that receives a first audio signal frame comprising a first configurable number of samples of the audio signal, upsamples the audio signal by a configurable upsampling factor to acquire a processed audio signal, and outputs a second audio signal frame comprising a second configurable number of samples of the processed audio signal, so that the first configurable number of samples is different from the second configurable number of samples; and a configurator that configures the signal processor, wherein the configurator configures the signal processor based on configuration information such that the configurable upsampling factor is equal to a first upsampling value when a first ratio of the second configurable number of samples to the first configurable number of samples comprises a first ratio value, and wherein the configurator configures the signal processor such that the configurable upsampling factor is equal to a different second upsampling value, the different second upsampling value being different from the first upsampling value, when a different second ratio of the second configurable number of samples to the first configurable number of samples comprises a different second ratio value, and wherein the first or the second ratio value is not an integer value; wherein the signal processor comprises: wherein the configurator configures the signal processor by configuring the number of synthesis filter bank channels or the number of analysis filter bank channels such that the configurable upsampling factor is equal to a third ratio of the number of synthesis filter bank channels to the number of analysis filter bank channels, and wherein at least one of the signal processor and the configurator comprises a hardware implementation.