Firefox + Soundcloud balance strangeness

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wolftune
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Firefox + Soundcloud balance strangeness

Post by wolftune »

Not sure if related to viewtopic.php?f=27&t=18062

But anyway, I'm on KDE Neon 16.04 with KXStudio, using Firefox 64, and pulse bridge in Cadence…

I've found that if I listen to Soundcloud in Firefox, one side of the stereo stream is much quieter than the other. This doesn't happen on other websites in Firefox or in any other browser or program that I've found. Just the FF + Soundcloud combo.

Any ideas??
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Re: Firefox + Soundcloud balance strangeness

Post by bluebell »

wolftune wrote:Not sure if related to viewtopic.php?f=27&t=18062

But anyway, I'm on KDE Neon 16.04 with KXStudio, using Firefox 64, and pulse bridge in Cadence…

I've found that if I listen to Soundcloud in Firefox, one side of the stereo stream is much quieter than the other. This doesn't happen on other websites in Firefox or in any other browser or program that I've found. Just the FF + Soundcloud combo.

Any ideas??
I remember such a problem some time ago. It was a bug in Firefox that was fixed in the next version.

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Re: Firefox + Soundcloud balance strangeness

Post by bluebell »

Ha! With a Focusrite 2i4 I have the same problem. I think it's caused by Pulseaudio: pavumeter shows activity on 3 channels: front left, front right, rear left and no signal on rear right.

With Youtube pavumeter shows activity on 4 channels.

Maybe Pulseaudio can be be tweaked.

EDIT:
I could force 2 channels in /etc/pulse/default.pa with "channels=2" for jack-sink

load-module module-jack-sink channels=2

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Re: Firefox + Soundcloud balance strangeness

Post by sysrqer »

I would think there is a simple option to enable/disable for this but I don't see anything immediate in the man pages. It does say this though:

Code: Select all

enable-remixing= If disabled never upmix or downmix channels to different channel maps. Instead, do a simple name-based matching only. Defaults to yes. 
https://linux.die.net/man/5/pulse-daemon.conf

I think you just need to add this to your ~/.pulse/daemon.conf (create it if it doesn't exist).

Code: Select all

enable-remixing = no
This seems to back that up - https://askubuntu.com/questions/900290/ ... ound-sound
wolftune
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Re: Firefox + Soundcloud balance strangeness

Post by wolftune »

I already have it set to just 2 channels per viewtopic.php?f=47&t=18531&p=93046&hili ... ack#p93046

And if I turn of the remixing, I won't get stereo speakers for any mono input to pulse. So, that's not a worthwhile and doesn't help in this case anyway.
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Re: Firefox + Soundcloud balance strangeness

Post by bluebell »

wolftune wrote:I already have it set to just 2 channels per viewtopic.php?f=47&t=18531&p=93046&hili ... ack#p93046

And if I turn of the remixing, I won't get stereo speakers for any mono input to pulse. So, that's not a worthwhile and doesn't help in this case anyway.
Try running pavumeter. Are there only 2 channels (bars) displayed?

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Re: Firefox + Soundcloud balance strangeness

Post by wolftune »

bluebell wrote:
wolftune wrote:I already have it set to just 2 channels per viewtopic.php?f=47&t=18531&p=93046&hili ... ack#p93046

And if I turn of the remixing, I won't get stereo speakers for any mono input to pulse. So, that's not a worthwhile and doesn't help in this case anyway.
Try running pavumeter. Are there only 2 channels (bars) displayed?
Yes, as I said, I set pulse to only 2 channels (as mentioned in the link I posted above). pavumeter confirms, two channels but one is much quieter than the other.
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