psg sounds mat to wav
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hi all,
ı got psg(polysomnography) records from phsyio.net. They have a tool for extracting rec(record) to mat file. And i used it then i tried to save files as wav file. Their sampling frequencies 128hz i used wavwrite for this by Fs=128 but i couldn't listen it by matlab, goldwave or etc. goldwave has an error it can't accept a sampling rate above 1000hz so ı resampled it to 1280hz and 1000hz by matlab resample function but still same problem.
Could anyone suggest me about saving mat file as wav.
2 Comments
Image Analyst
on 29 Oct 2013
Attach your mat file if you want anyone to try to convert it to a wav file for you. Also give your code where you tried to convert it to a wav file.
Answers (2)
Walter Roberson
on 30 Oct 2013
Is "sound" the file you loaded in? "sound" is the name of a MATLAB library call to play sounds, so you should avoid using it as the name of a variable.
Ensure that your "y" variable has one column per channel. Your psg data might be row-oriented instead of column-oriented.
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