Re: [SoX-users] backgrounding

[Pascal G. <evi...@gm...>]

On Thu, May 27, 2010 at 8:18 AM, Jan Stary <ha...@st...> wrote:
> 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.

FWIW, `play -q backing.wav &` works as expected here i.e. it does play.

-Pascal
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