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Apparatus and method for handling transient sound events in audio signals when changing the replay speed or pitch
Apparatus and method for handling transient sound events in audio signals when changing the replay speed or pitch
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机译:当改变重放速度或音调时用于处理音频信号中的瞬态声音事件的设备和方法
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摘要
An apparatus for processing an audio signal comprises an overlap-add stage for overlapping and adding blocks of a corresponding one of a plurality of subband signals using an overlap-add-advance value being different from a block extraction advance value. The apparatus further comprises a transient detector for detecting a transient in the audio signal or a subband signal of the plurality of subband signals. The overlap-add stage is configured for reducing an influence of a detected transient or for not using the detected transients when adding. The apparatus further comprises a transient adder for adding a detected transient to a subband signal generated by the overlap/add stage. A related method for processing an audio signal comprises, inter alia, either reducing an influence or discarding a detected transient when overlapping and adding.
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