计算机与现代化

• 应用与开发 • 上一篇    

 基于PCM编码的数字高清设备音频信号测试研究

  

  1. 广东农工商职业技术学院机电系,广东广州510507
  • 收稿日期:2014-12-05 出版日期:2015-04-27 发布日期:2015-04-29
  • 作者简介:黎燕霞(1983-),女,广东东莞人,广东农工商职业技术学院机电系讲师,硕士,研究方向:无线通信与嵌入式系统技术; 刘宇容(1971-),女,四川成都人,高级工程师,本科,研究方向:物联网技术。

 Research on Audio Signal Testing of Digital HD Equipment Based on PCM Code

  1. Dept. of Mechanical and Electrical Engineering, Guangdong AIB Polytechnic College, Guangzhou 510507, China
  • Received:2014-12-05 Online:2015-04-27 Published:2015-04-29

摘要:  随着数字高清设备的逐渐普遍和流行,数字高清设备对音频信号的品质要求也越来越高。当前,数字高清传输接口的音频传输品质评估一般只对物理层信号进行分析,不能直接从用户角度评估音频传输的质量。针对该问题,本文从系统的角度对数字高清设备的非线性音频信号进行测试,创新性地提出测试模块组成框架和非线性音频信号传输品质评价算法,并对创能达HD6M48与深圳创维29D08HT进行实测验证。通过量化分析结果证明,本测试技术的分析结果更加符合真实使用情况,提高了测试的效率和简便性。

关键词:  , 数字高清设备, 音频信号, 非线性信号, 误差分析

Abstract: It has the increasingly high requirements in quality of audio signal of digital high-definition (HD) equipment, along with the widespread and popular digital HD equipment. Currently, the signal analysis of audio transmission quality of digital HD transmission interface is usually only used in the physical layer, can not from the users’ perspective. The nonlinear audio signal to digital HD equipment has been tested from the point of view of system in this paper. The innovation which include the test module framework and the transmission quality algorithm of nonlinear audio signal is proposed in this paper, and is validatedit by testing HD6M48 device of chuangnengda and 29D08HT devices of Shenzhen SKYWORTH. By the results of quantitative analysis, the testing results are in accord with the actual use, and it improves the testing efficiency and simplicity.

Key words:  digital HD equipment, audio signal, nonlinear signal, error analysis