[mythtv-users] Sound volume from a PVR-500 (v4l)

[Hika van den Hoven]

Hoi Jerome,

Tuesday, January 28, 2020, 11:44:50 PM, you wrote:

> The last item on the recovery from my FE/BE blowing 3 caps after Christmas is
> getting my PVR-500 capturing composite from my Shaw DCT-700 to have a higher
> volume.

> Pre-crash, /dev/video0 was over-loud. Now it's the opposite: too quiet, even
> jacking up playback volume.

> I turned to this method to try to fix it.

> http://gedakc.users.sourceforge.net/display-doc.php?name=pvr-volume-too-loud

> It involves creating a script to set the volume, and then making it a "Master
> backend started" System Event.

> But it doesn't seem to have an effect and I'm kinda stumped.

> Even after I restart mythbackend, and presumably running the script,

>   v4l2-ctl --list-ctrls -d /dev/video0 | grep volume | tr -s " "

> returns

>   volume (int) : min=0 max=65535 step=655 default=60928 value=52400 
> flags=slider

> when my script asks for the volume to be 60928. I'm out of ideas and patience
> to flail on it at the moment.

Try:
v4l2-ctl -d /dev/video0 --set-ctrl=volume=<value>

Where <value> is the hardware soundlevel you want to set

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

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