讲述了语音编码的基本概念。 主要包括PCM、ΔM、CVSD、ADPCM、DCME-ADPCM、E-ADPCM、LPC等概念-Describes the basic concepts of speech coding. Include PCM, ΔM, CVSD, ADPCM, DCME-ADPCM, E-ADPCM, LPC concepts

PCM编码、WMA编码、ADPCM编码、LPC编码、MP3编码、AAC编码、CELP编码等，包括优缺点对比和主要应用领域 音频编码很好的参考-PCM encoding, WMA encoding, ADPCM coding, LPC encoding, MP3 encoding, AAC coding, CELP coding, including the advantages and disadvantages of contrast and the main application fiel

Low bit-rate speech coders are important in many critical communication systems such as military, police, fire departments, homeland security and other first responders. The need for elimination, reduction of the redundancy or irrelevant information

ADPCM算法目前已成为很受用的语音压缩算法之一。给出PCM概念。讨论DPCM,DM,ADM与ADPCM的 压缩算法原理以及算法实现流程框图。通过实验,指出每个算法的特征。实验结果进一步证实ADPCM算法既能够有效的 压缩语音,又能还原出高质量的语音。-ADPCM algorithm has become popular with one voice compression algorithm. PCM given concept. Discussion DPCM, DM, ADM an