On Fri, 17 Oct 2014 08:08:21 +0100, Steven Newbury <st...@snewbury.org.uk> wrote:
Steven> Pulseaudio uses named channels and expects clients to specify Steven> their channel-map if the default (ALSA) map does not route the Steven> audio to the expected speakers. Steven> Many Google results suggest dealing with this by re-routing the Steven> audio channels with the appropriate ALSA plugin, unless this is Steven> then specifically configured in the pulse configuration the Steven> named channels will be wrong and even then this will break any Steven> clients which expect the default mapping. Steven> Virtually all media files and codecs, certainly flac, dca, a52, Steven> and of course anything based on Microsoft's Steven> WAVEFORMAT_EXTENSIBLE specification, assume the layout in the Steven> table here: Steven> http://en.wikipedia.org/wiki/Surround_sound#Standard_speaker_channels Steven> For the 5.1 case: Steven> ALSA: FL, FR, RL, RR, FC, LFE Steven> WAVE-EX: FL, FR, FC, LFE, RL, RR Steven> Fortunately, pulseaudio directly addresses this with a built-in Steven> channel map for WAVE-EX which can be set automatically in the Steven> stream sample-spec. Will this change anything (even if it is "for the better" from your POV) in a setup without pulseaudio (output directly to ALSA)? -- Please *no* private copies of mailing list or newsgroup messages. Local Variables: mode:claws-external End:
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