TRANSIENT SIGNAL ENCODING METHOD AND DEVICE, DECODING METHOD AND DEVICE AND PROCESSING SYSTEM

摘要

A transient signal encoding method and device, decoding method and device and processing system are provided. The transient signal encoding method includes: obtaining the reference sub-frame of the maximal time domain envelope of the maximal amplitude value from the time-domain envelope of each sub-frame of the inputted transient signal (11); adjusting the amplitude value of the time domain envelope of each sub-frame before the reference sub-frame to make the first difference value is more than the preset the first threshold in which the first difference vale is the difference value between the amplitude value of the time domain envelope of each sub-frame before the reference sub-frame and the amplitude value of the maximal time domain envelope (13); writing the adjusted time domain envelope to the encoding bit stream (15).