[mythtv-users] fine tuning live
marius at schrecker.org
Fri Dec 16 15:37:10 EST 2005
> On Friday 16 December 2005 09:53, Martijn MorriŽn wrote:
>> You could use MythWeb at the same time (or from another machine,
>> probably most convenient) to update the finetune values and then
>> switch channels while watching LiveTV, this should show direct
>> Mass updating is also possible with MythWeb. You can change all
>> finetune values for all channels in one go. Another option is to
>> directly update the database (but I have no experience in that).
>> If you know the exact frequency of the channel you can calculate the
>> finetune value. Explanation can be found here
>> http://www.mythwiki.de/index.php/HOWTO_Mythfilldatabase (German
>> explanation) based on that information I created an online calculator a
>> months ago (http://www.escay.nl/mythtv/frequency2channel.php)
> Speaking of tuning, the first time I tried mythtv, I first tried kdetv
> viewing program for kde) to make sure the capture card is working. Kdetv
> scan for channels and most of the time, it can discover the name of the
> channel. How hard can it be put this in mythtv? It also based on qt.
> So you don't have to enter any of the frequency's because mythtv can scan
> The same goes for finetuning. My tv can do this. It scans for a channel
> then you can see it finetuning for that frequency. I think it just tries
> some frequency's, measure the signal quality and/or the image quality and
> picks the best frequency it found.
That sort of functionality would be really great. Even using ptune-ui
tofind the frequency isn't that good, because it takes such a long time to
change the frequency through enough Hz to see the difference in MPlayer. I
ended up lowering the frequency for one channel by about 50 Hz, the others
I gave up on and left the frequency that Myth found from its scan. Another
thing that would be great is some kind of signal strength metering (like
the early hi-fi fm radios had). I wondered if ivtv had this somewhere, but
gave up looking.
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