没有声音的波写输出文件

Question

我只是尝试使用.wav输出3个声音文件( wavwrite )。我在MATLAB中使用的数据使用soundsc播放声音很好，但由于某种原因，3个声音文件中有2个没有声音。

[data,Fs] = wavread('prj1.wav'); %Data file I read in
...%filtering with cascaded FIR filter

dataFiltered = filter(Hd,data); %applying filter to data
soundsc(dataFiltered,Fs) %plays perfectly
pause(6)
wavwrite(dataFiltered,Fs,'FIR_Cascade_Signal.wav'); %writes out perfectly, can play back fine.

在此之后，我的问题出现了：

...%Filter with different method, simple IIR filter if curious

dataFiltered2 = filter(Gd,data); %applying second type of filter
soundsc(dataFiltered2,Fs) %plays back fine, loud and clear
pause(6)

声音播放得很完美

wavwrite(dataFiltered2,Fs,'IIR_Cascade_Signal.wav');%Outputted file has NO SOUND

写出一个声音文件，但什么也听不见

...%Filtering with notch filter. This uses dataFiltered2 as the first stage, and then filters out a 30Hz harmonic with the Notch filter

Yfilt_stage2 = filter(B,a,dataFiltered2);
soundsc(Yfilt_stage2,Fs);  %Plays loud and clear, can hear everything
wavwrite(Yfilt_stage2,Fs,'Notch_Filtered_Signal.wav');%Again, no sound in output file

任何帮助都将不胜感激！

Answer 1

这是我电脑本身的问题。我在另一台电脑上尝试了我的代码，它运行得很好。