释义 |
psy·cho·acoustic 英psaɪkəʊə'kuːstɪk美psaɪkoʊə'kuːstɪk COCA²⁰⁰⁸⁴³BNC²³⁶²¹³⁺¹iWeb⁵¹⁹⁵⁷ 基本例句 adj.音质的¹⁰⁰ 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. 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。 dictall And we summarize the character of the human auditory system, especially the psychoacoustic modal. 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。 cnki Based on the masking properties of the psychoacoustic model, we then derive the required sound pressure level of the watermark. 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。 cnki 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。 cnki 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. 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。 cnki However, the audio coding technology for ultra wideband mostly uses perceptual coding which is based on the psychoacoustic model. 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。 fabiao In this dissertation, psychoacoustic models filter banks quantization and bit allocation predicate coding and temporary noise shaping 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。 cnki Main ideas as follows: Research of audio digital watermark Algorithm based on Fast Fourier Transforms and psychoacoustic auditory model. 主要工作有:基于快速傅立叶变换与声学模型的音频数字水印算法研究。 cnki Simultaneous masking which is an important research content of psychoacoustic, have a wide range of applications in audio coding, speech enhancement and so on. 同时掩蔽是心理声学的重要研究内容,在音频压缩编码、语音增强等方面有着广泛的应用。 fabiao 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. 根据 MPEG-4 AAC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。 fabiao Psychoacoustic model is the kernel technology of wideband audio compression. 心理声学模型是宽带音频压缩中的核心技术。 cnki |