| 基于ADSP2181的实时语音采集与处理板的原理与组成 |
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| 引用本文： | 陈发新,陈亚骏.基于ADSP2181的实时语音采集与处理板的原理与组成[J].数据采集与处理,1999,14(1):112-114. |
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| 作者姓名： | 陈发新 陈亚骏 |
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| 作者单位： | 西南电信技术研究所上海分所(陈发新)，上海交通大学电子工程系(陈亚骏) |
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| 摘 要： | 把ＰＣ机接口技术与ＤＳＰ芯片技术相结合，设计了一块实时语音采集与处理板。由于采用了具有３０ｎｓ指令周期的ＡＤＳＰ２１８１芯片及专用的Ａ／Ｄ，Ｄ／Ａ芯片，本板能够对多种语音算法如Ｇ７２８，Ｇ７２９，Ｇ７２３，ＭＰＥＧ音频等算法实现实时编解码处理。由于这块板对外具有灵活方便的数字接口，它也可用于其他高速数字信号采集与处理应用的场合。
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| 关 键 词： | 转换器 数据采集 语音信号处理 PC总线 DSP芯片 |
| 修稿时间： | 1998-02-15 |
Principle and Implementation of Real Time Voice Acquisition a nd Processing Gard Based on ADSP2181 |
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| Chen Faxin Shanghai Branch,Research Institute ofSouthwest Telecommu nication Techniques Shanghai, Chen Yajun.Principle and Implementation of Real Time Voice Acquisition a nd Processing Gard Based on ADSP2181[J].Journal of Data Acquisition & Processing,1999,14(1):112-114. |
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| Authors: | Chen Faxin Shanghai Branch Research Institute ofSouthwest Telecommu nication Techniques Shanghai Chen Yajun |
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| Affiliation: | Chen Faxin Shanghai Branch,Research Institute ofSouthwest Telecommu nication Techniques Shanghai,200434 Chen Yajun Department of Electrical Enginee ring,Shanghai Jiaotong University Shanghai,200030 |
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| Abstract: | Principle and implementation for real time voice acq uistion and processing card based on ADSP2181 are discussed. Because of using AD SP2181 with 30 ns instruction period and special A/D,D/A chip, the card can code and decode voice algorithms real time, for example, G728,G729,G723, etc. Becau se of its flexibility data interface can also be used in other data signal acqui sition and processing field. |
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| Keywords: | converter data acquisition voice signal proc essing PC bus DSP chip |
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