[pulseaudio-tickets] [Bug 94563] Option to minimally upmix or remap "mono" channel only (for speaker configurations greater than 2.x)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94563

--- Comment #9 from freedesktop at nuclearsunshine.com ---
(In reply to Raymond from comment #7)
> It is the hda-intel driver which upmix stereo to  5.1 or 7.1
> 
> 
> if card 1 is your hda intel with analog codec 
> 
> 
> speaker-test -c2 -t wav -D hw:1,0 
> 
> You have to ask the author who wrote the patch 
> "feed front to surround"

With analogue 5.1 I am getting front->rear copying, but not on HDMI 5.1 (which
is what I use ordinarily).

On HDMI though, with PA remixing enabled, there is still mono and stereo upmix
to all 6 channels, so that suggests that PA is doing the upmixing in that case.

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