| pcm.4 (164615) | pcm.4 (164752) |
|---|---|
| 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 --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 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.\" | 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 --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 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: head/share/man/man4/pcm.4 164615 2006-11-26 12:27:02Z joel $ | 26.\" $FreeBSD: head/share/man/man4/pcm.4 164752 2006-11-29 17:07:02Z joel $ |
| 27.\" | 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. |
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| 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 --- |