61 lines
1.9 KiB
Plaintext
61 lines
1.9 KiB
Plaintext
PulseAudio <--> ALSA plugins
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============================
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This plugin allows any program that uses the ALSA API to access a PulseAudio
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sound daemon. In other words, native ALSA applications can play and record
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sound across a network.
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There are two plugins in the suite, one for PCM and one for mixer control. A
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typical configuration will look like:
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pcm.pulse {
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type pulse
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}
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ctl.pulse {
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type pulse
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}
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Put the above in ~/.asoundrc, or /etc/asound.conf, and use "pulse" as device
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in your ALSA applications. For example:
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% aplay -Dpulse foo.wav
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% amixer -Dpulse
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PulseAudio will accept more or less any format you throw at it. So a plug
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wrapper is unnecessary. Mixing is also handled so dmix will only cause a
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performance hit without any gain.
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The plugins will respect your PulseAudio environment variables (like
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PULSE_SERVER), but you can override these in ALSA's configuration files.
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Both plugins accept the "server" parameter, specifying which PulseAudio server
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to contact. Both also accept the "device" parameter, which indicate which
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source and sink to use.
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The mixer control plugin also accepts the parameters "source" and "sink" for
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when you need to specify a sink/source combination with different names. If
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you need to do this with PCM:s then specify two PCM:s with different "device".
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If you do not specify any source and/or sink, then the server's defaults will
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be used.
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When "fallback" option is set, the plugin will try to open the given PCM
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(or control) automatically when connecting to PA server fails. Typically,
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it should point to "sysdefault", which was introduced recently in alsa-lib,
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so that the system-default setup is used even when you overwrite "default"
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PCM and control definitions.
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pcm.pulse {
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type pulse
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fallback "sysdefault"
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}
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ctl.pulse {
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type pulse
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fallback "sysdefault"
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}
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pcm.!default "pulse"
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ctl.!default "pulse"
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