[mythtv-users] Issue with the default sound volume on my PVR-150

[Michael T. Dean]

On 05/08/2007 06:23 PM, Rage321 wrote:
>
> When I first installed my PVR-150, everyone was more or less good to 
> go. I noticed that during playback my recordings would have a 
> noticeable hissing sound that I couldn't figure out how to get rid of. 
> After a couple of days googling, I figured out that the problem was 
> that Myth was resetting any volume settings I had set for the PVR-150, 
> (v4l2-ctl –set-ctrl=volume=63500), and using one much lower. Once I 
> started recording I would run v4l2-ctl –set-ctrl=volume=63500 and 
> everything would be fine with that specific recording. Audio playback 
> was great. No more noticeable hissing until Myth tried to recording 
> something else when it would reset the volume again.
>
> I created the following cronjob...
>
> * * * * * /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 5; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 10; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 15; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 20; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 25; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 30; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 35; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 40; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 45; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 50; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
> * * * * * /bin/sleep 55; /usr/bin/v4l2-ctl –set-ctrl=volume=63500
>
> …which resets the volume to what I want every 5 seconds.
>
> To me, this is a band aid and am coming here to see if someone else 
> has a better solution for me.
>

You could set the volume in mythtv-setup's capture card settings to the 
proper volume...

Mike