* play WARN alsa: under-run
@ 2018-07-10 18:08 Peter P.
2018-07-10 18:44 ` Måns Rullgård
0 siblings, 1 reply; 3+ messages in thread
From: Peter P. @ 2018-07-10 18:08 UTC (permalink / raw)
To: sox-users
Hi,
I am trying to play back a wav file on a raspberry pi 1 with play from
SoX v14.4.2. I do get dropouts with the following message:
play WARN alsa: under-run
I tried different values of --buffer but am not sure if this is
respected by the play command, or if it is just about sox's processing
blocks.
Does anyone know how I can adjust alsa buffer sizes for the play
command? Furthermore, does the play command support jackd?
Thank you!
Peter
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: play WARN alsa: under-run
2018-07-10 18:08 play WARN alsa: under-run Peter P.
@ 2018-07-10 18:44 ` Måns Rullgård
2018-07-10 18:51 ` Peter P.
0 siblings, 1 reply; 3+ messages in thread
From: Måns Rullgård @ 2018-07-10 18:44 UTC (permalink / raw)
To: Peter P.; +Cc: sox-users
"Peter P." <peterparker@fastmail.com> writes:
> Hi,
>
> I am trying to play back a wav file on a raspberry pi 1 with play from
> SoX v14.4.2. I do get dropouts with the following message:
>
> play WARN alsa: under-run
>
> I tried different values of --buffer but am not sure if this is
> respected by the play command, or if it is just about sox's processing
> blocks.
>
> Does anyone know how I can adjust alsa buffer sizes for the play
> command? Furthermore, does the play command support jackd?
The ALSA buffer size tracks the --buffer argument within the constraints
of the driver. Since the RPi 1 is a rather low-performing system, it is
quite possible that it is simply too slow to keep up regardless of
buffer size.
--
Måns Rullgård
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: play WARN alsa: under-run
2018-07-10 18:44 ` Måns Rullgård
@ 2018-07-10 18:51 ` Peter P.
0 siblings, 0 replies; 3+ messages in thread
From: Peter P. @ 2018-07-10 18:51 UTC (permalink / raw)
To: Måns Rullgård; +Cc: sox-users
* Måns Rullgård <mans@mansr.com> [2018-07-10 20:44]:
> "Peter P." <peterparker@fastmail.com> writes:
>
> > Hi,
> >
> > I am trying to play back a wav file on a raspberry pi 1 with play from
> > SoX v14.4.2. I do get dropouts with the following message:
> >
> > play WARN alsa: under-run
> >
> > I tried different values of --buffer but am not sure if this is
> > respected by the play command, or if it is just about sox's processing
> > blocks.
> >
> > Does anyone know how I can adjust alsa buffer sizes for the play
> > command? Furthermore, does the play command support jackd?
>
> The ALSA buffer size tracks the --buffer argument within the constraints
> of the driver. Since the RPi 1 is a rather low-performing system, it is
> quite possible that it is simply too slow to keep up regardless of
> buffer size.
Thanks Måns for confirming this! One less uncertainty, much appreciated!
P
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^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-07-10 18:52 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-07-10 18:08 play WARN alsa: under-run Peter P.
2018-07-10 18:44 ` Måns Rullgård
2018-07-10 18:51 ` Peter P.
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