How to add White noise to wav file

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Roro 2018-12-13

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https://ww2.mathworks.cn/matlabcentral/answers/435473-how-to-add-white-noise-to-wav-file

回答： Mark Sherstan 2018-12-13

Hi everyone

I'm new in matlab and I have a question if any kind person can help me with please

I have 50 wav files that contain speech, I want use matlab to do the following

First read these files wav
then add White Gaussin noise to them in six different signal-to-noise ratio (SNR) levels
if I want matlab to select 10 rundom wav files from these 50, is this possible?

Thanks in advance

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Mark Sherstan 2018-12-13

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https://ww2.mathworks.cn/matlabcentral/answers/435473-how-to-add-white-noise-to-wav-file#answer_352079

This should answer your questions:

Use the function audioread
Use the function awgn
Look at this question/answer for randomly picking files

This is all very possible! Let us know if you have further questions after reading through the resources, good luck.

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