The article introduces fundamental principle of the Continuously Variable Slope Delta(CVSD) modulator and describes the process of Speech Encoding based on DSP system. 介绍了CVSD(连续可变斜率增量调制)的基本原理和基于DSP系统开发语音编码的过程。
The paper presents the hardware design of RF circuit, the solution of the EMC, TDD Full-Duplex communication protocol and the audio codec, Continuously Variable Slope Delta(CVSD) modulator. 论文对射频电路的硬件设计、电路的EMC解决方案及TDD全双工通信协议作了详尽介绍,同时给出了通讯器采用的CVSD语音编解码算法的原理及实现过程。
In this system, continuously variable slope delta modulation ( CVSD ) is used to change the analogy signal into digital, GFM is used to modulate the signal, FDMA, PLL frequency synthesizer. 这种系统采用连续可变斜率增量调制(CVSD)来实现语音信号的编码、GFM调制解调方式、FDMA、PLL频率合成器技术。
Implementation of a Continuously Variable Slope Delta(CVSD) Modulation Codec 连续可变斜率增量调制编解码器的设计
The principle of the encoder and decoder based on continuously variable slope delta ( CVSD ) modulation is briefly described. 简要介绍了连续可变斜率增量(CVSD)调制的原理。