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Date: Wed, 4 Oct 2006 12:51:36 +0200
From: Lars Engels <lars.engels@0x20.net>
To: Olivier Nicole <on@cs.ait.ac.th>
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Cc: freebsd-multimedia@freebsd.org
Subject: Re: Mixing sound
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On Wed, Oct 04, 2006 at 05:19:29PM +0700, Olivier Nicole wrote:
> Hi,=20
>=20
> I have an embded application running on 4.11. I cannot upgrade the
> system version. http://www.cs.ait.ac.th/laboratory/door/
>=20
> 4.11 was using voxware (pre-OSS).
>=20
> I am requested to add limited sound support to it (for blind user).
>=20
> Now I am able to play a recorded sound, but some events may need to
> play 2 sounds at same time. How can I do that?

Hi Olivier,

take a look at:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/sound-setup.html

To use multiple channels set:

sysctl hw.snd.pcm0.vchans=3D4
sysctl hw.snd.maxautovchans=3D4

If that works for you, you can add it to /etc/sysctl.conf

-Lars

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