An audio encoder for encoding an audio signal in consideration of a peak spectral range detected in an upper frequency band, a method for encoding an audio signal,

摘要

1. An audio encoder for encoding an audio signal having a lower frequency band and an upper frequency band, the audio encoder comprising: a detector for detecting a peak spectral range of an upper frequency band of an audio signal; A molding machine (804) for shaping the lower frequency band using molding information for the lower band and molding the upper frequency band using at least a part of the molding information for the lower band; A quantizer and a coder stage (806) for quantizing the formed lower frequency band and the formed upper frequency band, entropy coding the quantized spectral values from the formed lower frequency band and the formed upper frequency band, (804) is further configured to attenuate the spectral value of the detected peak spectral region in the upper frequency band.