Patent ID: 8744863

Claim:
A multi-mode audio signal decoder apparatus for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content, the audio signal decoder comprising: a spectral value determinator configured to acquire sets of decoded spectral coefficients for a plurality of portions of the audio content; a spectrum processor configured to apply a spectral shaping to a set of decoded spectral coefficients, or to a pre-processed version thereof, in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in the linear-prediction mode, and to apply a spectral shaping to a set of decoded spectral coefficients, or a pre-processed version thereof, in dependence on a set of scale factor parameters for a portion of the audio content encoded in the frequency-domain mode, and a frequency-domain-to-time-domain converter configured to acquire a time-domain representation of the audio content on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode, and to acquire a time-domain representation of the audio content on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the frequency-domain mode; wherein the multi-mode audio signal decoder is implemented using a hardware apparatus, or using a computer, or using a combination of a hardware apparatus and a computer.