How to add White noise to wav file

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

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

Thanks in advance

Answer 1

[Mark Sherstan]

This should answer your questions:

1. Use the function audioread
2. Use the function awgn
3. 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.