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Output channel balance?


juvenall
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I was wondering if anyone could point me in the right direction. I've just set up Mumble with my Logitech G930 headset and while it's working great, the output audio is very, very slanted to the right. Is there a way I can balance this so the person's voice is evenly distributed between the right and left channels?


Any help here would be huge. Thanks!

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You could check positional audio in the audio output configuration. If positional audio is no selected, mumble will provide a mono audio stream. Some audio devices have problems distributing it evenly over the loudspeakers. When positional audio is selected mumble will get the loudspeaker count from your device drivers and provide the needed amount of audio streams.

Computer specs: AMD FX-8320, 8GB DDR3-SDRAM, AMD Radeon HD 7950, Asus Xonar D1, Windows 7 Ultimate 64bit/Debian Jessie AMD64.

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Thanks for the reply, rawnar. Unfortunately, playing with positional audio did not correct the issue. After enabling it, I went through the setup wizard and noticed that during the positional audio setup, when the spinning ball would rotate to the left, there was virtually no audio, but while on the right, there was full volume on the right. It may still be related (or a bug?) as other apps that don't (as far as I know) have positional audio (Vent, TS, Steam, Skype) don't appear to have this problem. Even the text-to-speech function is evenly distributed.


Any other ideas? If not, I'd love to see a feature in a future release to manually balance this.


Thanks again!

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I think the sound drivers of your headset are giving mumble a speaker configuration that mumble can not decipher. Open the log file of mumble at look for warnings starting with AudioOutput. If you see an entry like Unknown speaker #int: #hex then there are some speakers that are not recognized by mumble. The initialized #int channel #int hz mixer will give you the amount of speaker the device is presenting to mumble. Will monitoring the log file you can start playing with different sound systems and the sound devices in the audio output configuration, also check and un-check the headphone box. Do not forget to switch the advanced settings on so you can see all the possible settings.


Please report your findings here and also provide some info about your OS.

Computer specs: AMD FX-8320, 8GB DDR3-SDRAM, AMD Radeon HD 7950, Asus Xonar D1, Windows 7 Ultimate 64bit/Debian Jessie AMD64.

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  • 1 month later...

I have the same problem with my G930, but only when I'm not running the headset in surround sound mode. I can make the balance sound far more even in non-surround mode if I go into the G930 configuration app and drop the volume on the two active speakers from 11 down to 10. It's not perfect that way, but it's way better than the out of the box behavior of mumble with this hardware. Just like the OP, I have no problems with any other audio sources on the machine, including the speaker configuration tests that are built into windows.


My log file contents were as follows:

2011-01-26 21:34:53.320 DirectSound: Disabled as WASAPI is available

2011-01-26 21:34:53.367 G15LCDEngine_lglcd: Logitech LCD Manager not detected.

2011-01-26 21:34:53.367 CELT bitstream 8000000b from C:/Program Files (x86)/Mumble/celt0.0.7.0.sse2.dll

2011-01-26 21:34:53.367 Locale is en_US

2011-01-26 21:34:53.445 OpenSSL Support: 1

2011-01-26 21:34:53.445 SSL: Added CA certificates from system store 'Ca'

2011-01-26 21:34:53.460 SSL: Added CA certificates from system store 'Root'

2011-01-26 21:34:53.460 SSL: Added CA certificates from system store 'AuthRoot'

2011-01-26 21:34:53.476 ServerHandler: QOS2 loaded

2011-01-26 21:34:53.585 Overlay: Listening on "\\.\pipe\MumbleOverlayPipe"

2011-01-26 21:34:54.029 AudioInput: 72000 bits/s, 48000 hz, 480 sample CELT

2011-01-26 21:34:54.077 Adding device {6f1d2b60-d5a0-11cf-bfc7-444553540000} Mouse Mouse:8

2011-01-26 21:34:54.079 Adding device {6f1d2b61-d5a0-11cf-bfc7-444553540000} Keyboard Keyboard:127

2011-01-26 21:34:54.155 WASAPIOutput: Periods 10000us 3000us (latency 10666us)

2011-01-26 21:34:54.155 WASAPIOutput: Buffer is 20000us (1)

2011-01-26 21:34:54.156 AudioOutput: Initialized 8 channel 48000 hz mixer

2011-01-26 21:34:54.158 AudioInput: Initialized mixer for 1 channel 16000 hz mic and 0 channel 48000 hz echo

2011-01-26 21:34:54.207 Adding device {b142e9d0-9729-11df-8001-444553540000} Microsoft? SiderWinderTM X6 Keyboard Microsoft? SiderWinderTM X6 Keyboard:1024

2011-01-26 21:34:54.215 Adding device {03dde750-28b9-11e0-8001-444553540000} Audio Controls Audio Controls:5

2011-01-26 21:34:54.300 Adding device {b143fb40-9729-11df-8004-444553540000} USB Receiver USB Receiver:652

2011-01-26 21:34:54.641 LogDocument::loadResource 2 "http://mumble.info/mumble.png"

2011-01-26 21:35:12.578 QWaitCondition: Destroyed while threads are still waiting

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