From: James Courtier-Dutton <James@superbug.co.uk>
To: Michel Benoit <murpme@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: alsa driver api
Date: Thu, 03 May 2007 05:07:02 +0100 [thread overview]
Message-ID: <46395FE6.7080803@superbug.co.uk> (raw)
In-Reply-To: <c88e466f0705021040p1166b247t864288e3355dc25c@mail.gmail.com>
Michel Benoit wrote:
> Hi
>
> Does anyone have some code examples that show how to send pcm samples
> directly to an alsa driver. I'm (still) having trouble building/using
> alsa-lib and I want to make sure that my driver works correctly. If I
> understand correctly it is possible to send sound samples using the
> alsa driver api only (no alsa-lib).
>
> All I want to do for now is send a fixed sine wave to the driver. I
> saw some code snippets that seemed to do just that in a recent email
> on this list but it would help a lot if I could have a look at the
> complete application.
>
> Thanks,
>
> Michel
There is an alsa tool already available to do the task.
It is called "speaker-test"
speaker-test -c2 -Dplug:front -twav (voices)
speaker-test -c2 -Dplug:front -tsine (sine wave)
speaker-test -c2 -Dplug:front -tpink (pink noise)
You can then use any device name you wish to test.
James
next prev parent reply other threads:[~2007-05-03 4:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-02 17:40 alsa driver api Michel Benoit
2007-05-03 4:07 ` James Courtier-Dutton [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-05-02 17:56 Ciaccia
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