awgn_to_wav.m

内有两个MATLAB程序

function awgn_to_wav(snr);

%为输入的wav语音文件增加高斯白噪声，信噪比为snr
% 2007.12.15    Magic     SCU

[filename,pathname]=uigetfile('*.wav','请选择语音文件:');
[input_wav,fs,nbits]=wavread([pathname,filename]);
output_wav=awgn(input_wav,snr,'measured');
wavwrite(output_wav,fs,nbits,['SNR' num2str(snr) '_' filename]);