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25 Commits

Author SHA1 Message Date
andvar 5a58ccfbec fix various typos in comments, documentation and messages. 
mainly s/paramater/parameter/ and s/reduntant/redundant/.
 2022-08-07 11:06:18 +00:00
nia bc9df35069 audioctl.1: describe foibles 2021-03-21 10:50:08 +00:00
wiz f96f071847 Sort options (no-argument options before ones demanding arguments). 
Bump date.
 2019-05-09 09:37:11 +00:00
isaki 017c116c97 Remove -p option. AUDIO_SETCHAN is insecure and is obsoleted. 2019-05-08 14:44:42 +00:00
nat f835d36292 Audio now uses fdclone, there is no longer a limitation of one audio 
instance per process.  Virtual channels are placed in a queue, so there is
no longer a compile time limit of VAUDIOCHANS.

A new sysctl has been added to control multiple user access.
Mixer labels on virtual channels are now prefixed by vchan.

audiobell.c and audioctl have been updated to reflect these changes.

Use of fdclone was posted to tech-kern@ and improvements made.
Multiuser access control changes and the use of a queue were suggessted by
pgoyette@
 2017-02-10 19:31:42 +00:00
nat 82924a36bf The audio sub-system now supports the following features as 
posted to tech-kern:

    * Simultaneous playback and mixing of multiple streams
    * Playback streams can be of different encoding, frequency, precision
      and number of channels
    * Simultaneous recording to different formats
    * One audio device per process
    * Sysctls to set the common format frequency, precision and channels
    * Independent mixer controls for recording/playback per stream
    * Utilizes little cpu time for multiple streams / good performance
    * Compatible with existing programs that use OSS/NetBSD audio
    * Changes to audioctl(1) to allow specifying process id for corresponding
      audio device
 2016-12-08 10:28:44 +00:00
joerg 757c7f4987 Reorder sections to canonical order. 2010-05-15 00:08:31 +00:00
martin 11a6dbe728 Convert TNF licenses to new 2 clause variant 2008-04-30 13:10:46 +00:00
wiz 990562bfef .Nm does not need a dummy argument ("") before punctuation or 
for correct formatting of the SYNOPSIS any longer.
 2003-02-25 10:34:36 +00:00
wiz e1ec03904e New sentence, new line. Use Aq/An. 2002-10-13 01:06:42 +00:00
jdolecek b88029fb96 Use '-d' rather than '-f' for specification of alternative 
mixer or audioctl device. The support for '-f' is kept for compatibility
for now.
 2002-01-27 10:09:55 +00:00
wiz 663a1fb2a8 Sort sections, drop some whitespace. 2001-10-17 22:13:04 +00:00
augustss 6e9632f4a4 Xref audioplay(1) and audiorecord(1). 1999-04-02 15:53:39 +00:00
erh fa45851f9b Add missing .El line. 1999-03-10 05:14:51 +00:00
mycroft ed792e5ddd Oops; update the date as well. 1999-02-18 17:43:03 +00:00
mycroft e33b5e3104 Update comments. 1999-02-18 17:40:36 +00:00
mycroft ba0967bb41 Rework the examples section a little. 1999-02-18 17:37:37 +00:00
augustss 022a8ef794 Use audio and mixer devices with unit numbers. Also allow the devices 
without unit numbers of a compatibility option is set.  Fixes PR 5991.
 1998-08-21 19:45:37 +00:00
augustss b817f6c32a Chnage the name of the environment variables just introduced. 1998-04-27 16:55:23 +00:00
augustss 5749437b03 Add an environment variable for the default audio device. 1998-04-27 16:48:59 +00:00
lukem e3e553a90c fix .Nm usage 1997-10-18 12:05:22 +00:00
jtc 3ee7ba138d Fix tipo inherited from old version of TNF copyright template. 1997-10-08 22:31:53 +00:00
augustss 653833821e Change to use /dev/audioctl. 1997-08-18 21:35:26 +00:00
augustss 240af559df Add HISTORY section. 1997-05-15 16:38:34 +00:00
augustss 9d5e7c9a4c Add audio utility programs. 
The audio device can be inspected and changed by audioctl,
and the mixer device by mixerctl.  The command syntax was
inspired by sysctl.
 1997-05-13 17:35:50 +00:00