Gentoo Archives: gentoo-user

From: Nikos Chantziaras <realnc@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: Pulseaudio - Asus Xonar STX II 7.1 - 5.1 Surround - Front audio is coming from rear speakers in Firefox
Date: Sat, 28 Jan 2017 01:19:15
Message-Id: o6grh7$nhe$1@blaine.gmane.org
In Reply to: [gentoo-user] Pulseaudio - Asus Xonar STX II 7.1 - 5.1 Surround - Front audio is coming from rear speakers in Firefox by Jochen Kirchner
1 On 01/27/2017 06:15 PM, Jochen Kirchner wrote:
2 > Hi fellow gentoo'ers,
3 >
4 >
5 > I'm running XFCE with pulseaudio.
6 >
7 > Hardware is Asus Xonar STX II with the 7.1 daughterboard
8 >
9 > Analog Surround 5.1 is selected in xfce4-volumed-pulse.
10 >
11 > If I do speaker-test -c 6 all is right. Front audio is put through the
12 > front speakers.
13 >
14 > But if I play sound in Firefox and/or Chromium (eg. youtube) the sound
15 > is mainly coming through the rear speakers.
16 >
17 > Any advice? If you need more info please let me know, thanks!
18
19 Run alsamixer (media-sound/alsa-utils). Press F6, select the Xonar and
20 look for a "Stereo Upmix" setting.
21
22 Also, make sure you're using the "Virtuoso" kernel driver
23 (SND_VIRTUOSO), not the C-Media "Oxygen" one (SND_OXYGEN). The Virtuoso
24 driver should provide the correct mixer controls for Xonar cards.
25
26 (The Oxygen driver works too, since the Xonar cards use the Oxygen chip,
27 but it might not provide Xonar-specific mixer controls.)

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