%%?加噪聲，調整輸入信噪比，得到帶噪語音
fs=8000;frame=512;fstep=128;
????pathstr=‘d:/‘;
????str1=‘libo*.wav‘;
????filelist?=?dir（[pathstr?filesep?str1]）;
????fileNames?=?{filelist.name};
????file_len=length（fileNames）;
????a=0.3;
????for?j=1:file_len
????????IN_SNR=-1000000;
????????fin0=fileNames{j};
????????fin=[pathstr?filesep?fin0];
????????clean=wavread（fin）;
????????le=length（clean）;
????????noi=noi_source（1:le）;
%%設定希望輸出信噪比的范圍
????????low=14;??%最低值
????????hig=14.5;%最高值
???????
????????while?IN_SNR>hig?||?IN_SNR????????????if?IN_SNR>hig
????????????????a=a+0.001;
????????????elseif?IN_SNR????????????????a=a-0.001;
????????????end
????????noi2=noi*a;?????????????????????%后面的整數代表噪聲的含量
????????noisy=clean+noi2;???????????????%?帶噪語音生成
????????[IN_SNRSNROIN_segSNRsegSNROIN_LSDLSDOIN_PESQPESQ_O]=res_eva（cleannoi2noisyfsframefstep）;%%這里可以簡化一下，只算信噪比即可
????????end
????????sn=strrep（num2str（IN_SNR3）‘.‘‘-‘）;
????????fout0=strrep（fin0‘.wav‘[‘_white_‘?sn?‘db‘]）;
????????fout=[‘d:/‘?fout0];
????????wavwrite（noisyfsfout）;
????end
????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-05-18?20:09??res_eva\
?????目錄???????????0??2012-05-18?19:59??res_eva\eva_composite\
?????文件????????3227??2008-06-30?14:19??res_eva\eva_composite\apply_filter.p
?????文件????????1244??2008-06-30?14:19??res_eva\eva_composite\apply_filters.p
?????文件????????9896??2008-06-30?14:19??res_eva\eva_composite\apply_VAD.p
?????文件???????32998??2008-06-30?14:19??res_eva\eva_composite\batch_pesq.p
?????文件????????2770??2008-06-30?14:19??res_eva\eva_composite\batch_pesq2.p
?????文件???????20576??2006-09-18?10:25??res_eva\eva_composite\composite.asv
?????文件???????21070??2008-06-30?14:22??res_eva\eva_composite\composite.m
?????文件????????1842??2008-06-30?14:19??res_eva\eva_composite\convolution_in_timealign.p
?????文件????????5174??2008-06-30?14:19??res_eva\eva_composite\crude_align.p
?????文件????????2315??2008-06-30?14:19??res_eva\eva_composite\DC_block.p
?????文件???????47724??2006-07-30?19:40??res_eva\eva_composite\enhanced_logmmse.wav
?????文件?????????392??2010-08-09?18:09??res_eva\eva_composite\FFTNXCorr.p
?????文件????????2274??2008-06-30?14:19??res_eva\eva_composite\fix_power_level.p
?????文件????????3011??2008-06-30?14:19??res_eva\eva_composite\id_searchwindows.p
?????文件?????????622??2010-08-23?17:49??res_eva\eva_composite\id_utterances.p
?????文件?????????651??2008-06-30?14:19??res_eva\eva_composite\input_filter.p
?????文件????????5787??2008-06-30?14:19??res_eva\eva_composite\pesq.p
?????文件???????11850??2008-06-30?14:19??res_eva\eva_composite\pesq_debug.p
?????文件????????6539??2008-06-30?14:19??res_eva\eva_composite\pesq_measure.p
?????文件????????4581??2008-11-10?12:56??res_eva\eva_composite\pesq_psychoacoustic_model.p
?????文件????????2341??2008-06-30?14:19??res_eva\eva_composite\pesq_testbench.p
?????文件????????8102??2008-06-30?14:19??res_eva\eva_composite\plot_wav.p
?????文件?????????553??2008-06-30?14:19??res_eva\eva_composite\pow_of.p
?????文件????????7277??2009-07-31?10:13??res_eva\eva_composite\readme.pdf
?????文件????????2029??2009-07-31?10:13??res_eva\eva_composite\readme.txt
?????文件???????13971??2008-06-30?14:19??res_eva\eva_composite\setup_global.p
?????文件???????48198??2006-09-18?10:56??res_eva\eva_composite\sp09.wav
?????文件???????48198??2006-07-30?19:40??res_eva\eva_composite\sp09_babble_sn10.wav
?????文件???????21078??2008-06-30?14:19??res_eva\eva_composite\split_align.p
............此處省略10個文件信息