Patent ID: 8886523
Filing Date: 2014-11-11
Classification: G10L

Abstract:
1. A method of receiving an encoded audio signal, the method comprising: receiving an encoded audio signal comprising a coded representation of an input audio signal and a control code based on an audio signal class; decoding the audio signal comprising producing high-band coefficients and low-band coefficients from the audio signal, wherein the high-band coefficients comprises a time-frequency domain representation of high frequency content of the audio signal and the low-band coefficients comprises a time-frequency domain representation of low frequency content of the audio signal; post-processing the decoded audio signal in a first mode using a hardware-based audio decoder if the control code indicates that the audio signal class is not of a first audio class, wherein post-processing the decoded audio signal in the first mode comprises modifying low-band coefficients and high-band coefficients in the time-frequency domain to correct for audio coding artifacts to produce modified low-band coefficients and modified high-band coefficients; post-processing the decoded audio signal in a second mode using the hardware-based audio decoder if the control code indicates that the audio signal class is of the first audio class; and producing an output audio signal based on the post-processed decoded audio signal.