[SoX-users] Mix and pad one file

[Giuseppe P. F. <por...@gm...>]

I have two file, back.wav and voice.wav

I need to play and make possible voice.wav start after 3 secs

 

I have tried:

 

Play -m back.wav voice.wav pad 3 3

 

But not work,

Any suggestion is welcome.

 

Giuseppe