Tuning Problem/Question

[sub]

One important thing to note, is that Hauppauge dont use standard Directshow tuning APIs in their WinTV app, so their tuning doesnt not behave the same as other apps.

Is there any sense in trying to fine tune the frequency for a channel by hand to try and get audio working?

You could try, it might help. I think I've seen other comments indicating it helped to slightly off-tune the frequency.

-FreqCopy copies them here: HKEY_LOCAL_MACHINE\Software\Microsoft\TV System Services\TVAutoTune

Yes, it does copy them there, but from memory it often copies them to the wrong place under that key. I cant remember the exact details. Because the WinTV app initialises the tuner a different way, simply having the same frequencies as used by WinTV may not help.

-GB-PVR doesn't seem to use these values anymore. (confirm, anyone?)

I dont read any values from registry settings or anything like that. I just use standard Microsoft APIs to change channels, behind the scenes it reads certain registry settings if they exist for that combination of country and tuning (cable/antenna). This is why freqcopy putting them in the wrong place means they're often not used.

-Is that the only way to force GB-PVR to use a different frequency?

You can either create the correct registry settings, or enter the frequency in place of the channel number in the capture source channel list.

[capone]

-FreqCopy copies them here: HKEY_LOCAL_MACHINE\Software\Microsoft\TV System Services\TVAutoTune

Yes, it does copy them there, but from memory it often copies them to the wrong place under that key. I cant remember the exact details. Because the WinTV app initialises the tuner a different way, simply having the same frequencies as used by WinTV may not help.

Just to be clear myself, are you saying this is where GB gets freqs? There's nothing in there but the TS0-0 subdir, and it has the freqs, so I assume that's the right destination.

If so, then what has me confused is the channel that I have no audio for isn't even in there. I can see it (w/ the static blast for sound), but it's not numerically.

Is it not 1:1 of Name and Channel #? I'm thinking that may it, since there is an 18 there (it's ch20 in question), and it has a non-default value.

I would add my card to the list of 150's w/ the problem, but I had the sound for it until recently...unless it's newer 150 drivers that cause it to happen. If that's the case, the HW can get it and it's the drivers that muck it up (but can be manually corrected in Win2k tuning).

[sub]

-FreqCopy copies them here: HKEY_LOCAL_MACHINE\Software\Microsoft\TV System Services\TVAutoTune

Yes, it does copy them there, but from memory it often copies them to the wrong place under that key. I cant remember the exact details. Because the WinTV app initialises the tuner a different way, simply having the same frequencies as used by WinTV may not help.

Just to be clear myself, are you saying this is where GB gets freqs?

No...well maybe indirectly.

I just use the Microsoft Directshow API. Effectively I say "change to channel (Germany, Antenna, 12)" and Microsoft takes care of the rest.

Behind the scenes Microsoft has a standard table of frequencies for each combination of country and tuning (cable/antenna). I dont know where this is stored, but I know they allow overrides to specified in the HKEY_LOCAL_MACHINE\Software\Microsoft\TV System Services\TVAutoTune registry settings. GB-PVR doesnt know anything about these registry settings. I just ask for (Germany, Antenna, 12).

There's nothing in there but the TS0-0 subdir, and it has the freqs, so I assume that's the right destination.

If so, then what has me confused is the channel that I have no audio for isn't even in there. I can see it (w/ the static blast for sound), but it's not numerically.

Sorry this wasnt answering your questions. I was trying to answer Rubberband's questions which were more specific in relation to this.

I would add my card to the list of 150's w/ the problem, but I had the sound for it until recently...unless it's newer 150 drivers that cause it to happen. If that's the case, the HW can get it and it's the drivers that muck it up (but can be manually corrected in Win2k tuning).

I'm looking out for a specific problem, but your description does not sound like that problem, so I'd rather not include your details as it may confuse matters.

[capone]

That's all fine, and thanks. I'm only interested in this problem as a curriosity, in case it happened to a channel I really needed. I may play more. I just wanted to make sure I was looking in at least some relvant locations.

I'm guessing it's not something you have control over, and it doesn't come up a lot, but if you ever had the time/ability, it may be cool to beef up the tuning helper app a little. If you could use it to tune a specific channel instead of scanning, and could slide/enter a value, it would allow ppl to do more direct editing.

[jfhiller]

I seem to be having the same problem with the Hauppauge WinTV PVR-150MCE. Picture looks good in Tuning Assistant, but looks pretty jacked in normal GB-PVR live TV mode -- zebra lines, messed up color, etc. Here's my card information:

NTSC / NTSC-J
26552
Rev C268

Hope this helps. GB-PVR is seriously cool freeware. Thanks for creating it!

[jfhiller]

oh yeah, made in malaysia, if that matters.

[sub]

I seem to be having the same problem with the Hauppauge WinTV PVR-150MCE. Picture looks good in Tuning Assistant, but looks pretty jacked in normal GB-PVR live TV mode -- zebra lines, messed up color, etc. Here's my card information:

NTSC / NTSC-J
26552
Rev C268

Hope this helps. GB-PVR is seriously cool freeware. Thanks for creating it!

This is not the problem I'm discussing with Hauppauge. The problem we are looking at relates to missing audio on a few channels.

[fhmanas]

Don't know if this is relevant here, but am using PVR-500MCE on a WINXP Pro SP2 system. Win2kTV does not work and I don't have any utility to really fine tune frequencies, FreqCopy just copies frequencies that does not exist in the registry. Tuning Assistant just gets the first clear frequency, no way to fine tune. Is there some other utility out there compatible with the PVR-500MCE with upgrading to WIN MCE

Thanks

[jfhiller]

sub, is there any chance you or someone else could help me with the problem i mentioned above? i'm running xp pro sp2. i've got all the frequency settings from tuning assistant and looked for the fields in the registry as i've seen mentioned on the forum, but i'm not seeing the same fields. i'm at a loss at this point. i'd love to get it set up and working properly. thanks

[sub]

Picture looks good in Tuning Assistant, but looks pretty jacked in normal GB-PVR live TV mode -- zebra lines, messed up color, etc.

Can you post a screen shot? Some one may recognise the problem, and hopefully have solved it in the past. I cant think of anything offhand.