| 摘要 |
There is provided a method for encoding an audio signal. The method comprises determining, for transmission to an audio decoder, a temporal shaping procedure that is used by the audio decoder to reconstruct a temporal structure of the audio signal, wherein the audio decoder is configured to generate a high band extension of the audio signal from an envelope and an excitation, wherein the generation includes the step of jointly controlling envelope shape and excitation noisiness with a common control parameter ( f ). There is provided an audio encoder configured to determine, for transmission to an audio decoder, a temporal shaping procedure that is used by the audio decoder to reconstruct a temporal structure of the audio signal, wherein the audio decoder is configured to generate a high band extension of the audio signal from an envelope and an excitation, and to jointly control envelope shape and excitation noisiness with a common control parameter ( f ). |
