心理声学模型是宽带音频压缩中的核心技术。
Psychoacoustic model is the kernel technology of wideband audio compression.
基于心理声学模型的掩蔽特性，可以得出水印被要求的相应的声压级。
Based on the masking properties of the psychoacoustic model, we then derive the required sound pressure level of the watermark.
总结了人类听觉系统的特点，特别是人类听觉的感知特征以及心理声学模型。
And we summarize the character of the human auditory system, especially the psychoacoustic modal.
介绍了基于人耳心理声学模型的数字音频压缩技术的杜比数字音频AC - 3。
Dolby digital audio AC-3 is introduced as a digital audio compressing technology based on human ear psychoacoustics models.
本文首先对心理声学模型、滤波器组、量化和比特分配、预测编码、时域噪声成型等技术进行研究。
In this dissertation, psychoacoustic models filter Banks quantization and bit allocation predicate coding and temporary noise shaping is analyzed.
笔者对MP3所用到的几个关键技术，如子带滤波、心理声学模型、动态噪声分配等做出简明分析。
This paper analyses the key technologies used in MP3, such as subband filter, psychoacoustical model and dynamic noise allocation.
笔者对MP3所用到的几个关键技术，如子带滤波、心理声学模型、动态噪声分配等做出简明分析。
This paper introduces the key technologies used in MP3, such as subband filter, psychoacoustical model and dynamic noise allocation.
介绍了人耳生理系统和掩蔽效应的特性，并阐述了视音频压缩标准MPEG1音频部分的心理声学模型。
By analyzing human physiological audio system and its masking effect, this paper illustrates the psychoacoustic model in audio part of the ISO video coding standard MPEG1.
摘要提出了基于临界频带率、依赖于强度的扩展函数、非线性迭加和前向掩蔽效应的参数心理声学模型。
A parametric psychoacoustic model based on critical band rate, level - dependent spreading function, non - linear superposition and forward masking was proposed.
文章分析了心理声学模型有效的掩蔽特性，主要介绍了心理声学模型的改进音调探测方法，并给出了其实验结果。
This paper analyzes the masking characteristics of the psycho-acoustic model, concentrates on the modified tonality detection algorithm, and presents experimental results.
深入分析了心理声学及听觉掩蔽原理，根据采用听觉掩蔽原理设计的心理声学模型及滤波器组阐述了AC-3编解码的过程。
The theories of psychoacoustics and auditory masking are analyzed. Then the decoding process of AC-3 according to the psychoacoustics models and filter banks is introduced.
根据MPEG - 4AAC编码标准及对算法的基本原理的分析研究，算法优化的关键点在于心理声学模型、滤波器组和量化等模块。
We research on MPEG-4 AAC encoding standards and the algorithm principium. The key point is optimizing the psychoacoustic model module, filter Banks module and quantizer module.
本文提出了一个基于心理声学理论和实验的听觉感知模型，它模拟了人对声音响度的听觉感知特征。
Based on the psychoacoustic theory and experiments this paper presents an auditory sense model which simulates the characteristics of human sense of hearing speech loudness.
本文提出了一个基于心理声学理论和实验的听觉感知模型，它模拟了人对声音响度的听觉感知特征。
Based on the psychoacoustic theory and experiments this paper presents an auditory sense model which simulates the characteristics of human sense of hearing speech loudness.
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