| 基于Matlab的音频文件数字滤波处理 |
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| 引用本文： | 张康,刘雅.基于Matlab的音频文件数字滤波处理[J].计算机与现代化,2007(12):98-100. |
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| 作者姓名： | 张康 刘雅 |
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| 作者单位： | 江西中医学院计算机系,江西,南昌,330004 |
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| 摘 要： | 声音信号是一维连续信号,而计算机只能处理离散信号.为了从离散信号还原连续信号,根据采样定理,可以确定采样频率的最小值.wav文件是一种数字声音文件格式,本文基于Matlab分析了wav声音文件频谱与声音的关系.通过一个数字滤波实例,处理一个带有盲音的wav文件,去除其中的噪声,并给出了不同采样频率对输出声音信号的影响.
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| 关 键 词： | 数字信号处理 数字滤波 Matlab wav Matlab 音频文件 数字滤波 滤波处理 Based Filter Figure File Frequency Audio 影响 输出 噪声 关系 声音文件 频谱 分析 文件格式 数字声音 最小值 |
| 文章编号： | 1006-2475（2007）12-0098-03 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2006年11月14 |
Dealing with Audio Frequency File by Figure Filter Based on Matlab |
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| ZHANG Kang,LIU Ya.Dealing with Audio Frequency File by Figure Filter Based on Matlab[J].Computer and Modernization,2007(12):98-100. |
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| Authors: | ZHANG Kang LIU Ya |
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| Abstract: | Sound semaphore is one dimension concatenation signal,however computer only can process data by discrete signal.By way of revert concatenation signal from discrete signal,according to the sampling theorem,it can confirm sampling frequency's least value.Wav file is a kind of figure sound file format.This paper analyses the relationship of wav sound file frequency chart between sounds based on Matlab.By giving an example of figure filter,dealing with a wav file with blinding sound,wiping off the noise and giving different sampling frequency reply export sound signal's effect. |
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| Keywords: | digital signal processing digital filtering Matlab wav |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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