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From: Daniel Mack <daniel@zonque.org>
To: "François Isabelle" <isabellf@sympatico.ca>, alsa-devel@alsa-project.org
Subject: Re: Recording support for Roland SD-50 USB Audio device
Date: Wed, 04 Jun 2014 15:26:37 +0200	[thread overview]
Message-ID: <538F1E8D.7030505@zonque.org> (raw)
In-Reply-To: <BLU0-SMTP85440BF63C6B13B2B2E03AAB220@phx.gbl>

On 06/04/2014 03:10 PM, François Isabelle wrote:
> Le 04/06/2014 08:30, Daniel Mack a écrit :
>> What exactly is the problem and how did you test?
> 
> I tried the "input" view meeter in pavucontrol first.
> 
> And this is what I get when trying the record from the command line:
> 
> isabellf@brahms:~/alsa-driver$ LC_ALL=C  arecord -Dplughw:3 file.wav
> arecord: main:722: audio open error: Device or resource busy

Then some other application has control over the device, most probably
pulseaudio or JACK. Check if prepending arecord with "pasuspender --" helps.

> I also checked the alasmixer capture parameters it says:
>     This sound device does not have any capture controls.

That can well be. alsamixer only lists controls that are exposed by the
hardware, and there might well be none.


Daniel

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  reply	other threads:[~2014-06-04 13:26 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <538F0E19.7000708@sympatico.ca>
2014-06-04 12:21 ` Recording support for Roland SD-50 USB Audio device François Isabelle
2014-06-04 12:30   ` Daniel Mack
2014-06-04 13:10     ` François Isabelle
2014-06-04 13:26       ` Daniel Mack [this message]
2014-06-04 13:53         ` François Isabelle
2014-06-04 19:28   ` Clemens Ladisch
2014-06-05  0:15     ` François Isabelle
2014-06-05  6:56       ` Clemens Ladisch
2014-06-05 17:03         ` François Isabelle

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