Re: [SoX-users] backgrounding

[Jan S. <ha...@st...>]

On May 27 20:01:56, pj...@pj... wrote:
> Hi.  Sorry, it's me again...
> 
> Under bash,
>   ~> play -q backing.wav
> works fine :-)  but:
>   ~> play -q backing.wav &
> doesn't run in the background, it enters Stopped state :-(

Show us the output of ps(1) that proves this.

$ play -q backing.wav &
[1] 14208
$ ps -p 14208

> ( It probably doesn't take long to fork a shell, but in e.g.:
>   ~> (play --buffer 1024 -q backing.wav &) \
>   >  & sox -t alsa mt:4,0 solo.wav
>   it must add something to the latency. )

This is _not_ the way to do synced recordings.
The backing and the solo will be shifted by a latency.