原创 MATLAB脚本读写二进制文件

 2011-5-7 15:30  2677 8 8 分类: MCU/ 嵌入式

使用环境: Windows + MATLAB 7.5.0

%---------------------------------------------------
%Copyright
%All right reserved
%File name: write_bin.m
%Author: dpc525
%---------------------------------------------------
%Major funtion:
% read wave file and play it, then write the data to binary file
%---------------------------------------------------
%Note:
%---------------------------------------------------
%Modification history
% Mod. Date :2011-05-07
% V0.0: Initial Revision
%---------------------------------------------------
clear all;
% [f_name p_name] = uigetfile({'*.wav','WAVE File (*.wav)'},'Pick a file');
% file = strcat(p_name,f_name);
% [x, fs, nbits] = wavread(file, 'native');
[x,fs, nbits] = wavread('1.wav', 'native');
wavplay(x, fs);

fp = fopen('data.bin', 'w', 'native' );
fwrite( fp, x, 'int16');

fclose(fp);

读文件

%---------------------------------------------------
%Copyright
%All right reserved
%File name: read_bin.m
%Author: dpc525
%---------------------------------------------------
%Major funtion:
% read binary file
%---------------------------------------------------
%Note:
%---------------------------------------------------
%Modification history
% Mod. Date :2011-05-07
% V0.0: Initial Revision
%---------------------------------------------------
clear all;
fp = fopen('data.bin', 'r', 'native');
y =fread(fp, 'int16=>int16'); %'*int16'
fs = 44100;
wavplay(y,fs);
fclose(fp);

总结:fread(fp, 'int16=>int16');的第二个参数把人弄的耗好长时间,一直不敢看MATLAB的英文的帮助文档, 先入为主的害怕,逼不得已去读读时候,发现并没有想象中的那么困难,你还会有点喜欢.当你直面现实的时候,也许你会发现路在何方.MATLAB对数字信号处理和自动控制是非常好的搭建原型工具,其脚本语言使用简单方便.一直寻找各种处理数据的工具软件解决问题,可并不总尽人如意.既然自己是程序员,为什么不写一些适合自己的脚本程序了.

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