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{{From|https://help.ubuntu.com/community/SurroundSound}} {{Languages|UbuntuHelp:SurroundSound}} === Enabling Surround Sound in libraries === ==== Enabling Surround sound in ALSA ==== Surround may already be working, make sure alsamixer has the right volume settings (Wave Surround in particular). These commands should be useful for testing: For 4.0 surround (two speakers in front, two in the back): <code><nowiki>speaker-test -Dplug:surround40 -c4 -l1 -twav</nowiki></code> For 5.1: <code><nowiki>speaker-test -Dplug:surround51 -c6 -l1 -twav</nowiki></code> For 7.1: <code><nowiki>speaker-test -Dplug:surround71 -c8 -l1 -twav</nowiki></code> If it's not working, you might try following alsa's own guide: http://alsa.opensrc.org/SurroundSound And also this: http://www.halfgaar.net/surround-sound-in-linux Note however that many codecs require custom routing (ttables), the folk at #alsa on irc.freenode.org may be able to help in that case. ==== Enabling Surround Sound in OpenAL ==== Edit ~/.openalrc (or /etc/openalrc if you want the setting to apply system-wide) and add these two lines: `(define speaker-num 4)` `(define alsa-device "surround40")` Currently OpenAL does not seem to work with 5.1 or higher, but this should work fine. === Enabling Surround Sound in Specific Applications === ==== xmms ==== Right-Click -> Options -> Preferences -> Audio I/O Plugins > Alsa > Configure Under "Audio Device" enter "plug:surround51" [[category:CategoryDocumentation]] [[category:CategoryNeedsExpansion]] [[category:UbuntuHelp]]
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