Lines Matching +full:reserved +full:- +full:channels

2 .\" Copyright (c) 2009-2011 Joel Dahl <joel@FreeBSD.org>
3 .\" All rights reserved.
39 .Bd -ragged -offset indent
60 driver are: multichannel audio, per-application
61 volume control, dynamic mixing through virtual sound channels, true full
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118 .Xr snd_uaudio 4 (auto-loaded on device plug)
145 .Bl -tag -width ".Va snd_driver_load" -offset indent
164 To define default values for the different mixer channels,
174 multichannel matrix processor supports up to 18 interleaved channels, but the
175 limit is currently set to 8 channels (as commonly used for 7.1 surround sound).
177 re-routing of channels.
188 to adjust the number of channels used.
198 Commonly used for ear-candy or frequency compensation due to the vast
204 Each device can optionally support more playback and recording channels
206 .Dq virtual channels
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261 .Bl -tag -width 2n
262 .It -1
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317 .Bl -tag -width 2n
324 Technically the quality is poor however, due to the lack of anti-aliasing
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389 The number of playback, record, virtual channels, and
410 when applications tries to re-open the same device.
424 When enabled, channels will skip all dsp processing, such as channel
441 By default only 2 channels are enabled.
443 .Bl -tag -width 2n
447 Stereo, 2 channels (left, right).
449 3 channels (left, right, LFE).
451 3 channels (left, right, rear center).
453 Quadraphonic, 4 channels (front/rear left and right).
455 5 channels (4.0 + LFE).
457 5 channels (4.0 + center).
459 6 channels (4.0 + center + LFE).
461 6 channels (4.0 + front/rear center).
463 7 channels (6.0 + LFE).
465 8 channels (4.0 + center + LFE + left and right side).
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477 This is the default mode for hardware channels which lack support for digital
482 All channels will produce sound as usual until a digital format playback is
484 When this happens all other channels will be muted and the latest incoming
494 channels with different format/rate.
495 When a new channel is about to start, the entire list of virtual channels will
536 .Bl -tag -width ".Pa /dev/sndstat" -compact
549 status, including all channels and drivers.
585 .Dl mixer -d pcm1
587 .Bl -diag
629 …ok formulae for audio EQ biquad filter coefficients (Audio-EQ-Cookbook.txt), by Robert Bristow-Joh…
630 .%U "https://www.musicdsp.org/en/latest/Filters/197-rbj-audio-eq-cookbook.html"
637 .%T "Polynomial Interpolators for High-Quality Resampling of Oversampled Audio, by Olli Niemitalo"
638 .%U "http://yehar.com/blog/wp-content/uploads/2009/08/deip.pdf"
661 .An -nosplit
669 .An Seigo Tanimura Aq Mt tanimura@r.dl.itc.u-tokyo.ac.jp