[mythtv-users] Balance volume across tuners

[Mark Knecht]

On 1/18/07, Tom Lichti <tom at redpepperracing.com> wrote:
> Mark Knecht wrote:
> > On 1/18/07, Tom Lichti <tom at redpepperracing.com> wrote:
> >> Mark Knecht wrote:
> >>> On 1/18/07, Tom Lichti <tom at redpepperracing.com> wrote:
> >>>> Mark Knecht wrote:
> >>>>> On 1/18/07, Tom Lichti <tom at redpepperracing.com> wrote:
> >>>>>> jk-myth at kleeh.com wrote:
> >>>>>>> The volume level for channels on my HDHR is significantly lower than
> >>>>>>> channels tuned with the PVR-500 - is there a way to set volume levels per
> >>>>>>> channel or per tuner?
> >>>>>> No. I tried to start a pledge to get someone to develop it, but it
> >>>>>> didn't generate any interest. What I did was a bit of a hack, but it
> >>>>>> works for me. I have 2 PVR-250's, a PVR-150, and an HDHR, the PVR150 is
> >>>>>> significantly quieter than all the other tuners (by 12db, if I recall
> >>>>>> correctly) so I commented out the code in Myth that sets the volume, and
> >>>>>> I manually set the volume for each PVR card at boot time (quiet the
> >>>>>> 250's and raise the 150) and the volume levels are pretty much bang on
> >>>>>> now. The HDHR records the audio at whatever the stream contains, so
> >>>>>> there is nothing you can do there, but it appears that the audio levels
> >>>>>> are fairly consistent in the digital recordings I am getting.
> >>>>>>
> >>>>>> Tom
> >>>>> Tom,
> >>>>>    What commands do you use to set volume levels on your cards. I also
> >>>>> have 150's and 250's and have the same problem.
> >>>>>
> >>>>> Thanks,
> >>>>> Mark
> >>>> Sorry, fumble fingers hit the wrong key...
> >>>>
> >>>> I have 2 PVR-250's and one PVR-150, in that order they get set with this:
> >>>>
> >>>> /usr/local/bin/ivtvctl -d /dev/video0 -y volume=58950
> >>>> /usr/local/bin/ivtvctl -d /dev/video1 -y volume=58950
> >>>> /usr/local/bin/ivtvctl -d /dev/video2 -y volume=65024
> >>>>
> >>>> That is with IVTV 0.4.x, newer/older versions may differ.
> >>>>
> >>>> Tom
> >>> Thanks much. I'll check that out.
> >> You do have to comment out some code in myth and recompile, since myth
> >> sets the volume at the start of recordings. I think I've posted the
> >> patch on the users list, I can dig it up again if needed.
> >>
> >> Tom
> >
> > I'll do some searching but if it's easy for you to find then please
> > feel free to post it again or send it to me off list.
>
> It's here: http://www.gossamer-threads.com/lists/mythtv/users/222723#222723
>
> Tom

Thanks!