Method and apparatus for editing an audio signal.

摘要

The audio editing method operates with original sound data (310) which is already compressed and encoded in predictive form, for example ADPCM. To edit a desired portion (E1-E2) from the original data (310), the method reconstructs the encoded PCM audio data (300) and encodes a non-predictive unit (N; 334) to replace the first audio data unit (320) of the desired portion (E1-E2). Thus the desired portion is rendered independent of preceding sample values, without having to be recoded entirely. An enhanced method encodes further replacement units (344) to eliminate noise introduced by the basic method. <IMAGE>