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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.

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.

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本文提出了基于心理声学模型的多功能音频数字水印算法。This article presented a multifunctional audio digital watermark algorithm based on psychoacoustic model.

一些传统的心理声学注重对音高、响度与音色的感觉。Some of the traditional psychoacoustic concerns involve the perception of pitch, loudness, volume and timbre.

提出了一种基于心理声学模型的自同步音频水印算法。This paper presents a blind audio watermarking algorithm with self-synchronization based on Psychoacoustic Model.

心理声学模型描述的是声音如何能够在不降低声音感知质量的前提下实现最大的压缩。The psychoacoustic model describes how sound can be highly compressed without degrading the perceived quality of the sound.

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.

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而带宽范围较宽的音频编码采用的则多是基于心理声学的感知编码技术。However, the audio coding technology for ultra wideband mostly uses perceptual coding which is based on the psychoacoustic model.

该算法具有一般性，可以推广到其他CELP编码器的心理声学模型应用中。The improved scheme achieves a high generality and it could be integrated into the psychoacoustic models applied to other CELP coders.

计算各声音样本的主要客观参量，分析车门声的客观声学参量与主观偏好性之间的关系。The main psychoacoustic parameters are calculated and the relationship between psychoacoustic parameters and subjective preference is analyzed.

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.

结合人耳听觉掩蔽效应，提出了一种利用宿主信号的掩蔽阈值特性对隐藏消息进行调制后再嵌入的音频数据隐藏方案。A novel audio data hiding algorithm, which utilizes this psychoacoustic model of the host audio signal to regulate secret information, is proposed.

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提出了一种基于声学心理模型和小波包变换的的音频水印算法，适用于立体声音频信号和单声道音频信号。An audio watermark algorithm based on psychoacoustic model and wavelet packet analysis which is applicable both to stereo and mono audio is presented.

指出了一种简化的心理声学模型及其计算方法，适合于低成本编码器的需要。A simplified psychoacoustic model especially suitable for low cost implementation is introduced, which is proved to significantly reduce the coding com.

指出了一种简化的心理声学模型及其计算方法，适合于低成本编码器的需要。A simplified psychoacoustic model especially suitable for low cost implementation is introduced, which is proved to significantly reduce the coding complexity.

最后，对HRTF最小相位近似进行了心理声学实验，发现最小相位近似引起的相位误差在听觉上是不可辨别的。The psychoacoustic experiments are conducted which confirm that the minimum-phase approximation is an adequate description of the measured HRTF in the near-field.

其次，介绍了MP3音频压缩标准所使用的子带编码、心里声学模型、自适应窗口切换、哈夫曼编码、比特池等关键技术。Secondly, introduces MP3 audio compress standard including subband filter bank, psychoacoustic model, adaptive window switch over, Huffman coding, bit reservior, etc.

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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.

心理声学的实验结果表明，新处理方法的声像定位与传统的带耳壳、耳道的HRTF处理无显著区别，但音色较后者有所改善。因而新的方法更适合实际的虚拟声信号处理应用。Results of psychoacoustic experiment also show that the HRTF without pinnae has almost the same localization effect as the HRTF with pinnae , while has less change in timbre.

声像定位理论和心理声学实验结果表明，头部转动对前方声像方向的影响较少，主要是影响侧向声像方向。The results of sound image localization theory and psychoacoustic experiment prove that the rotation of head has little effect on the front image, but has some effect on lateral image.