Adaptive Differential Pulse Code Modulation(ADPCM) ( ADPCM ) is an effective algorithm of speech coding. It adopts the method of adaptive quantization and adaptive prediction to compress pulse code modulation ( PCM ) signal. 自适应差分脉冲编码调制(ADPCM)(ADPCM)采用自适应量化方法和自适应预测方法,对PCM(脉冲编码调制)语音信号进行再压缩,是一种有效的语音信号波形编码压缩方案。
The Adaptive Differential Pulse Code Modulation(ADPCM) ( ADPCM ) algorithm has been used to replace the Adaptive Pulse Code Modulation ( APCM ) algorithm in the RPE-LTP scheme to quantize the selected RPE sequence. 又用自适应差分脉冲编码调制(ADPCM)(ADPCM),代替RPE-LTP方案中的自适应脉冲编码调制(APCM)对选择的RPE序列进行的量化编码。
This article mainly describes the concept and principle of encoding in the first and second chapters. The third chapter mainly describes Adaptive Differential Pulse Code Modulation(ADPCM) ( ADPCM ) algorithm, adaptive quantizing and adaptive predicting algorithm. 本文从编码的概念和基本理论出发,论述了自适应差值脉码调制(ADPCM)编码的算法,重点介绍了自适应量化和自适应预测算法。介绍这一系统的原理、构造及操作。
Based on the Mozer speech coding algorithm, this paper proposes a speech coding algorithm which combines waveform transform with adaptive differential pulse code modulation ( ADPCM ) coding. 本文在Mozer语音编码算法基础上,提出一种利用波形变换与分段ADPCM相结合的语音编码算法。