| 基于DSP的声效处理器硬件设计与时序研究 |
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| 引用本文： | 战岳祥,宋占伟,徐刚.基于DSP的声效处理器硬件设计与时序研究[J].电子技术应用,2007,33(10):52-55. |
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| 作者姓名： | 战岳祥 宋占伟 徐刚 |
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| 作者单位： | 吉林大学,电子科学与工程学院,吉林,长春,130012;吉林大学,电子科学与工程学院,吉林,长春,130012;吉林大学,电子科学与工程学院,吉林,长春,130012 |
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| 摘 要： | 针对特定环境(车内空间)内的声场重建,给出了声效处理器的硬件设计方案。以TI公司的数字信号处理器TMS320VC5402为硬件中心,对声音信号进行算法处理;串行16位模数转换芯片AD1870实现对音频信号的采集;串行数模转换芯片AD1858完成对处理后的音频信号的输出。详细叙述了TMS320VC5402和AD1870、AD1858之间的连接和时序。实验表明,此系统可靠、稳定,为完成音频信号的实时编解码提供了硬件支持,使在非规范空间播放高品质立体声音效成为可能。
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| 关 键 词： | 声场重建 声效处理 数字信号处理 |
| 修稿时间： | 2007年3月12日 |
Circuit design and timing sequence research of audio processer based on DSP |
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| ZHAN Yue Xiang,SONG Zhan Wei,XU Gang.Circuit design and timing sequence research of audio processer based on DSP[J].Application of Electronic Technique,2007,33(10):52-55. |
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| Authors: | ZHAN Yue Xiang SONG Zhan Wei XU Gang |
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| Abstract: | Aiming at a reconstruction of sound field,gave the hardware design project of an audio processor.Adopod the digi- tal signal processor TMS320VC5402 of the TI company for the handle center for the hardware,provided the hardware foundation for the realization of the calculate way.The stereo,16-bits AD conversion chip AD1870 realized collecting the analog audio signal; The stereo DA conversion chip AD1858 completed the exportation of the processed digital audio signal.Detailedly described the conjunction and the timing sequence between the chip of DSP and ADC,DAC.The experiment expressed this system is credible and stable,providing the hardware support for the coding and decoding of audio signal,and making it possible to broadcast high- quality sound in non-norm space. |
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| Keywords: | sound reconstruction audio processing DSP |
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