节点文献
音频编解码算法的客观测试
Objective Measurement for Audio Coding Decoding
【摘要】 依据BS.1387客观测试标准,针对现有3种常用的音频编解码算法(MPEG2,AAC,AC3)进行客观测试,并对测试结果做了分析和对比。BS.1387标准是于2000年ITU针对音频感知音质提出的客观测试方法,简称PEAQ(The ITUStandard for Objective Measurement of Perceived Audio Quality)。针对该标准,对其测试方法模型进行了深入研究,并在Matlab软件中得以实现。通过与主观测试的对比,揭示了该算法的可靠性和准确性。
【Abstract】 According to BS.1387 standard for objective measurement,three in common use audio coding decoding arithmetic(MPEG2,AAC,AC3)are tested,the results are analysed and compared.BS.1387 standard is the ITU standard for objective measurement of perceived audio quality proposed in 2002,PEAQ for short.This paper takes into research deeply for a model of measurement approach,and puts it into effect in Matlab.Through comparison for subjective measurement and objective(measurement,)the reliability and the veracity for this arithmetic are given.
【Key words】 cognitive model； masked threshold conception； MOV′s(Model Output Model)； objective measurement；
- 【文献出处】 现代电子技术 ,Modern Electronics Technique , 编辑部邮箱 ,2006年10期
- 【分类号】TN912.32
- 【被引频次】7
- 【下载频次】215