pcm.4 (886e53ca9a98d8605a5813e2fa45e2da34afe333) pcm.4 (4a418e5bf9d837864ad60a7229e3fe3ce2d72732)
1.\"
2.\" Copyright (c) 1998, Luigi Rizzo
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
26.\" $FreeBSD$
27.\"
1.\"
2.\" Copyright (c) 1998, Luigi Rizzo
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
26.\" $FreeBSD$
27.\"
28.Dd November 26, 2006
28.Dd November 29, 2006
29.Dt SOUND 4
30.Os
31.Sh NAME
32.Nm sound ,
33.Nm pcm ,
34.Nm snd
35.Nd
36.Fx

--- 226 unchanged lines hidden (view full) ---

263All playback paths will be converted to this sample rate before the mixing
264process begins.
265.It Va dev.pcm.%d.vchanformat
266Format for
267.Tn VCHAN
268mixing.
269All playback paths will be converted to this format before the mixing
270process begins.
29.Dt SOUND 4
30.Os
31.Sh NAME
32.Nm sound ,
33.Nm pcm ,
34.Nm snd
35.Nd
36.Fx

--- 226 unchanged lines hidden (view full) ---

263All playback paths will be converted to this sample rate before the mixing
264process begins.
265.It Va dev.pcm.%d.vchanformat
266Format for
267.Tn VCHAN
268mixing.
269All playback paths will be converted to this format before the mixing
270process begins.
271.It Va dev.pcm.%d.polling
272Experimental polling mode support where the driver operates by querying the
273device state on each tick using a
274.Xr callout 9
275mechanism.
276Disabled by default and currently only available for a few device drivers.
271.El
272.Ss Recording Channels
273On devices that have more than one recording source (ie: mic and line),
274there is a corresponding
275.Pa /dev/dsp%d.r%d
276device.
277.Ss Statistics
278Channel statistics are only kept while the device is open.

--- 142 unchanged lines hidden ---
277.El
278.Ss Recording Channels
279On devices that have more than one recording source (ie: mic and line),
280there is a corresponding
281.Pa /dev/dsp%d.r%d
282device.
283.Ss Statistics
284Channel statistics are only kept while the device is open.

--- 142 unchanged lines hidden ---