| ARM控制的音频分析仪设计 |
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| 引用本文： | 郑艺成,宋跃,张志坚,梁世亮.ARM控制的音频分析仪设计[J].深圳信息职业技术学院学报,2008,6(2):29-32. |
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| 作者姓名： | 郑艺成 宋跃 张志坚 梁世亮 |
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| 作者单位： | 东莞理工学院电子工程系,广东东莞,523808 |
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| 基金项目： | 广东省科技攻关计划
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东莞市科技计划项目(第2批)
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东莞市科研发展专项 |
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| 摘 要： | 介绍基于ARM9的中断控制机制，利用FFT快速算法完成对音频信号的频谱分析，以10位ADC转换模拟信号或通过RS-232C与上位机通信实现数据输入，触摸屏TFT-LCD显示实现仪器操作界面，设计一个频谱测量范围20Hz-10kHz，频率分辨力达到20Hz的音频信号分析仪的设计思想和实现方案。
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| 关 键 词： | S3C2410 FFT 频谱分析 TFT触摸屏 |
Design of ARM-controlled audio frequency analyser |
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| ZHENG Yicheng,SONG Yue,ZHANG Zhijian,LIANG Shiliang.Design of ARM-controlled audio frequency analyser[J].Journal of Shenzhen Institute of Information Technology,2008,6(2):29-32. |
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| Authors: | ZHENG Yicheng SONG Yue ZHANG Zhijian LIANG Shiliang |
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| Institution: | (Department of Electrical Engineering, Dongguan University of Technology, Dongguan 523808, P.R.China) |
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| Abstract: | The audio frequency analyser with frequency spectrum measurement range 20 Hz - 10 kHz, frequency resolution reaches 20 Hz was introduced in the article, which was based on ARM9 interrupt control mechanisms, The FFT algorithm was used for audio signal spectrum analysis, and has analog signal 10-bit AD converted by communicating with PC through RS-232C as data input means. The instrument interface was designed by touchable TFT-LCD. Its design concept and actualized way were presented. |
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| Keywords: | S3C2410 FFT spectrum analysis touchable TFT screen |
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