Patent ID: 9570085
Date: 2017-02-14
CPC Classifications: G10L

Claim:
1. An apparatus for generating an audio output signal based on an encoded audio signal spectrum, wherein the apparatus comprises: a processing unit for processing the encoded audio signal spectrum to acquire a decoded audio signal spectrum comprising a plurality of spectral coefficients, wherein each of the spectral coefficients comprises a spectral location within the encoded audio signal spectrum and a spectral value, wherein the spectral coefficients are sequentially ordered according to their spectral location within the encoded audio signal spectrum so that the spectral coefficients form a sequence of spectral coefficients, a pseudo coefficients determiner for determining one or more pseudo coefficients of the decoded audio signal spectrum, wherein each of the pseudo coefficients is one of the spectral coefficients, a replacement unit for replacing at least one or more pseudo coefficients by a determined spectral pattern to acquire a modified audio signal spectrum, wherein the determined spectral pattern comprises at least two pattern coefficients, wherein each of the at least two pattern coefficients comprises a spectral value, and a spectrum-time-conversion unit for converting the modified audio signal spectrum to a time-domain to acquire the audio output signal.