| 基于ARM的低速率语音编码的研究与设计 |
| |
| 引用本文： | 李有明,宋宇.基于ARM的低速率语音编码的研究与设计[J].中国西部科技,2008,7(31):38-39. |
| |
| 作者姓名： | 李有明 宋宇 |
| |
| 作者单位： | 长春工业大学,计算机科学与工程学院,吉林,长春,130012 |
| |
| 摘 要： | 随着移动通信系统的广泛应用，低速率语音编码也获得了极大的发展。本文研究了一种基于连续正弦波形（CSW—Continuous Sinusoidal Waveform）的低速率语音编码算法。该算法是一种改进的正弦谐波编码算法，鳊码速率达到2．4kb／s以下。本算法采用叠加一组正弦波的方法来合成语音，这些正弦波的频率是基音频率的整数倍。并采用内核ARM920T（mpu是Samsung公司的S3C241O）对语音编码信号进行处理。
|
| 关 键 词： | 低速率语音编码 CSW编码算法 多级矢量量化 嵌入式系统 ARM |
Low bit Rate Speech Coding Research and Design Based on ARM |
| |
| LI You-ming,SONG Yu.Low bit Rate Speech Coding Research and Design Based on ARM[J].Science and Technology of West China,2008,7(31):38-39. |
| |
| Authors: | LI You-ming SONG Yu |
| |
| Institution: | (Computer Science and Engineering Institute of CCUT, Changchun 130012 China) |
| |
| Abstract: | With the mobile communication system widely application,there has been great development of low bit rate speech coding.In this paper,a low bit rate speech coding algorithm based on CSW(Continuous Sinusoidal Waveform)is studied.this algorithm is an improved sinusoidal harmonic coding algorithm,bit rate up to 2.4kb/s below.This method sums a group of sinusoids to synthesize the speech signal,and the frequencies of these sinusoids are multiples of fundamental frequency.And this process was performed by kernel ARM920T(Its mpu is S3C2410 of Samsung). |
| |
| Keywords: | ARM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
