Acoustics vocabulary . physiological acoustics and psychoacoustics 声学词汇.物理声学和心理声学
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An adaptive algorithm of audio watermarking based on mpeg psychoacoustics model ii 的自适应音频水印算法
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Human ’ s psychoacoustics and physiology are the theoretical foundation of research on audio localization 对人类听觉生理学和心理学的了解是研究仿真音频技术的基础。
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The psychoacoustics and physiology of human beings are the theoretical foundation of virtual sound location research . human ’ s auditory system structure and auditory characteristics are introduced in this paper . these are research foundation for this paper 人类听觉生理学和心理学是研究虚拟声定位技术的基础,本论文回顾了心理声学相关听觉系统以及听觉特性,包括音频定位因素的影响和哈斯效应,掩蔽效应等因素对多音叠加的影响,为本文奠定了研究基础。
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The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii , and the analysis of the major four modules in the compression algorithm , including encoding of subband filter bank , psychoacoustics model , quantification and huffman coding , frame packing 重点研究了mpeg音频第层编码的算法标准。详细分析了压缩算法中的四个主要功能模块：子带滤波器组编码，心理声学模型，比特流量化与霍夫曼编码，帧数据流格式化。
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Then , the method of measuring hrtf by mit and cipic laboratory is briefly reviewed . after that , by using sound wave scatter theory and rigid sphere model of head , a simple method for calculation hrtf is proposed . and validating that method through psychoacoustics experiment , and matching database for realizing individual hrtf 然后简述了麻省理工学院和cipic实验室测量hrtf的方法,通过声波的散射理论以及利用人头模型提出一种简化的理论计算对头部尺寸对声音定位的影响进行了理论分析,并且利用心理学测试验证利用匹配数据库实现hrtf的个性化。
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In the recent years , with the development of such technologies as computer and digital signal processing , transaural technology based on system of kemar grows ; it has a broad future on the domain of electro acoustics , indoor - acoustics , yawp - acoustics , psychoacoustics , computer multimedia and manual virtual environment , which has expanded the scope of the system of kemar 但近年来,由于计算机技术,数字信号处理技术等方面的发展,在假头型立体声系统的基础上,发展了听觉传输技术。它在电声、室内声、噪声、心理声学、计算机多媒体和人工虚拟环境等许多方面有广泛的应用前景,其内容已超过了假头型立体声这样一种特殊的声传输和重发系统的范畴。
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An under estimation of the hearing effects by the low frequency noise could be happened . that is to say , even if the a - weight sound level is small , the low frequency noise may annoy to listener by the different ways from the high frequency noise . so it is necessary to understand psychoacoustics in order to make noise quality evaluations that match the subjective experience of the purchaser 同时应用主观评价方法?成对比较法( paircomparisonstatisticalevaluationmethods )对不同家用空调器噪声进行主观评价试验，并与客观评价结果进行了对比，结果表明：人主观响应(烦躁程度)与各心理声学评价指标之间均具有很高的相关性，相关系数一般均大于0 . 9 ，而与a计权声压级之间的相关系数只有0 . 78 。
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Audio localization technology , a new intersecting subject , touches on such research fields as psychoacoustics and physiology , artificial intelligence and high - capability computer system and so on . and it can help transfer and identify visible information , enhance the fidelity , imagination and immersion of 3d simulation environment . so it has a broad application future 音频定位技术作为一门新兴的边缘交叉学科,涉及听觉心理学、听觉生理学、人工智能和高性能计算机系统等多个研究领域,且具有广泛的应用前景,它可以帮助传递和识别可视信息,增强三维仿真环境的逼真度、想像力和沉浸感,在军事和民用方面有广泛的应用。
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In this paper , the author established the model of objective evaluate parameters of sound quality and develope d an objective evaluation system which could give quantitative objective evaluate parameters , such as loudness , sharpness , roughness , psychoacoustics annoyance ( pa ) etc . paper also describes an subjective evaluation investigation ir " " hich 16 subjects used pair comparison statistical evaluation methods to evaluate the noise character of room air - conditioners , the results show that there is generality good agreement between quantitative objective evaluate sound quality parameters and subjective evaluation . at the same time an example of application of the technique to improve the noise character of room air - conditioner is offered 此外本文还介绍了一个应用声质量评价技术改进kfr - 50hw / e2d空调器声质量的实例，通过对空调器室外机管系、导流罩、出风网等进行改进，空调器的声质量得到了明显改善：在室外风量提高164m ~ 3 / h情况下，声音响度下降16 ，波动强度明显改善，尖锐度指标也略有下降，作者同时总结了不同改进措施对产品声质量影响的方式，以期为今后的声质量改进提供借鉴。
