Apparatus and method for synthesizing an audio signal, decoder, encoder, system and computer program

摘要

A method and an apparatus for synthesizing an audio signal are described. A spectral tilt is applied to the code of a codebook (202) used for synthesizing a current frame of the audio signal. The spectral tilt is based on the spectral tilt of the current frame of the audio signal. Further, an audio decoder operating in accordance with the inventive approach is described.