Volume Control for Chrome Add-On

1st Official Post

    Hi there,

    I run a current LibreELEC setup on i3-6100 and analog audio. Within Kodi / Kodi core functions the volume settings works as wanted, but as soon as I start e.g. an Addon like Google Chrome the volume is set to its maximum and there seems nothing to be done against it. Is there someone who could tell me how to change the volume in add-ons? The usual Volume-Up&Down keys do not work.

    I change this setting

    Code
    <audio>
<mute>false</mute>
<fvolumelevel>0.500000</fvolumelevel>
</audio>

    to

    Code
    <audio>
<mute>false</mute>
<fvolumelevel>0.100000</fvolumelevel>
</audio>

    no change at all.

    There is no volume control at all possible when I open the Addon Google Chrome (installed from the defaul repository). Even the volume circle is missing, when I hit the volume key (which works fine while hearing music or watching tv).

    Quote from Da Flex

    Thanks for testing. Next you can try the alsa mixer this way:

    Code
    amixer -c 0 set Digital 80%

    Hello Da Flex,

    I am in the same boat here, running Libreelec over HDMI and I tried amixer with every variation and it has no effect at all. I tried aplay -l.

    I also ran the command

    Code
     amixer | grep mixer

    to list all available options there and I had Chrome open and tried them one by one, to no avail.

    I understand that pulse-audio wouldn't work, since that is killed right before starting Chrome addon.

    I am running:

    libreelec (official): 9.2.6

    Chrome addon: 9.2..0.104

    Intel NUC

    Edited once, last by AmandaB (February 22, 2021 at 1:03 PM).

    Quote from Da Flex

    It seems like Chrome has it's independent audio settings. You could search for audio config files inside the Chrome add-on folder.

    Another approach is to install the "Kodi Audio Mixer" add-on and try to find the right fader for Chrome.

    Thank you for the pointers Da Flex

    That helped me to push it a tad further. Running the "Kodi Audio Mixer" add-on, I noticed that the only control that affected Chrome audio was 'IEC958',0.

    The issue now is that I can only mute/unmute (toggle) it, but amixer won't allow me to change the volume up or down (or "Kodi Audio Mixer", for the matter -- there is no volume slider next to "IEC958",0).

    The command that I ran was

    Code
    amixer -c 0 set IEC958,0 10%
amixer: Invalid command!

    How would I investigate\fix this issue ?

    Quote from Da Flex

    AmandaB Please post the output of this commands:

    • amixer
    • cat /proc/asound/cards

    I should have posted the output of both commands earlier. Sorry about that.

    I just wanted to let you know that there was a word censored here in "Simpe mixer control 'Internal Mic bost',0". The word here was B-O-O-S-T

    From the technical view the sound device is closed in Kodi and opened in Chrome.

    To control the volume in Chrome install and test one of the Chrome Sound/Volume Apps.

    Quote from mglae

    From the technical view the sound device is closed in Kodi and opened in Chrome.

    To control the volume in Chrome install and test one of the Chrome Sound/Volume Apps.

    Thank you for the suggestion mglae!

    I cannot say that I tried them all, but I tried more than my fair share of them.

    They either have no effect at all from the get go or they mute Chrome and once that happens no matter how high I set the volume, it stays muted.

    Quote from Da Flex

    I think you understand what I did. Play around with other device channels from post #9. Maybe it's a good idea to disable auto-mute first ("Auto-Mute Mode").

    I'm an RPi user, so I can't install Chrome to verify anything.

    Da Flex, Thank you for your help.

    I am out of my depth here. I tried every possible combination from post #9 and I tried with auto-mute disabled and enabled but to no avail.

    Hopefully someone would come along who can give me any pointers on why amixer has no effects on HDMI sound other than mute and unmute.