This code used for denoising audio files. we use various filters for denoising purpose. 1. Extract files and run Audio_denoise_main.m file from folder... 2. Click on Load & play Audio file and select Original sound.wav file 3. Then using slider select AWGN (White gauusion noise)...it is vary from 1 to 10 set it to 10.. 4. now click on Add Noise and play... 5. u can save noisy signal by save noisy signal tab... 6. now select wavelet... 7. select thresholding.. 8. now click on Denoise and play....wait for some time...this will take 25 sec time 9. now save that denoised signal...and record all output parameters... 10. now click on clear all and exit