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Hauppauge HVR 900H hybrid configuration

 
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Hauppauge HVR 900H hybrid configuration
sub
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#51
2009-01-17, 07:30 PM
Quote:Hmm ... do you know how I could create such a tuning-table (at that key I deleted)? Maybe this can help DirectShow switching to correct frequencies.
Sorry, I'm not that familiar with those registry settings, so I cant answer that.
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#52
2009-01-17, 08:11 PM
Is it possible to force the finetune capability by using a "secret" option of GB-PVR in my configuration - Whenever a analog channel has been chosen? I heared DirectShow supports that?!

Hmm ... It seems WinTV requires sometimes a moment to do that fine tuning. When I start WinTV sometimes a get a the same noise - but then the right frequency will found.
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#53
2009-01-17, 08:17 PM
Quote:Is it possible to force the finetune capability by using a "secret" option of GB-PVR in my configuration
There is no secret option. The closest you'd get is tweaking the Microsoft frequency override settings, but I cant give you any advice on this.

I've never played around with this device myself, but I have heard its drivers often get stuck in an NTSC analog mode, which is what I think is probably happening. WinTV probably codes around problems with their tuners, wheras GB-PVR just treats all devices the same and expects them to follow the standards. Maybe try downloading GraphEdit and inserting the HVR900H capture filter, view its properties and switch it to PAL-B, then try using live tv in GB-PVR to see if it makes any difference.
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#54
2009-01-18, 10:40 AM
good morning mr. software architect,

I analysed the behavior of WinTV tuning functionality - and It seems they do not use special tuning interfaces to their hauppauge device. The result of WinTV's channel-manager is stored in a simple Access-DB Smile without any hint for frequencies (pairs of channel-numbers and my channel-names, not more).

In real - the WinTV application has the same problems to tune into the correct TV-channel. At first I get noise and then I can see like WinTV tunes in (or DirectShow)

Now I tried to use channel-override feature, I started the TuningAssistent to map channel numbers to frequencies, in the way described by MSDN:
http://msdn.microsoft.com/en-us/library/...S.85).aspx

But now DirectShow uses exactly these frequencies without finetuning - I get a very bad / or none signal at all - PVRX2 aborts LiveTV because DirectShow tells them there is no device / driver available for a chosen analog channel.

There exists a DirectShow API function (described in MSDN-article above) that controls finetuning-behavior for a chosen channel.

What do you think about? Is there a way to add this DS9 capability to your direct-capture interface?

If you are interested in - there is another feature which is possible easy to implement to the TunerAssistent -> maybe you can generate a frequencies.reg file with detected channel and frequency information?! The MSDN article above describes how it works. I think this function sets an relative frequency range for that auto-tune feature.

What do you think? I'm your beta-tester Smile
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#55
2009-01-18, 03:23 PM
ozzor Wrote:good morning mr. software architect,

I analysed the behavior of WinTV tuning functionality - and It seems they do not use special tuning interfaces to their hauppauge device. The result of WinTV's channel-manager is stored in a simple Access-DB Smile without any hint for frequencies (pairs of channel-numbers and my channel-names, not more).
Trust me, Hauppauge maintain their own tables of channel/frequencie mappings. They've told me exactly what they do in the past. They still store the channel/country/tuning in their database. They do it this way because they started out using the Microsoft tuning tables, but got sick of being tripped up with incorrect tuning information for some countries, and frequency override settings breaking things, so ended up implementing their own tables. Its also not just frequency that can differ with their tables too. For example, the Microsoft NewZealand/Antenna table own covers 11 VHF channels/frequencies, Hauppauges table has 69 channels/frequenices covering VHF and UHF.

Quote:In real - the WinTV application has the same problems to tune into the correct TV-channel. At first I get noise and then I can see like WinTV tunes in (or DirectShow)

Now I tried to use channel-override feature, I started the TuningAssistent to map channel numbers to frequencies, in the way described by MSDN:
http://msdn.microsoft.com/en-us/library/...S.85).aspx

But now DirectShow uses exactly these frequencies without finetuning - I get a very bad / or none signal at all - PVRX2 aborts LiveTV because DirectShow tells them there is no device / driver available for a chosen analog channel.

There exists a DirectShow API function (described in MSDN-article above) that controls finetuning-behavior for a chosen channel.

What do you think about? Is there a way to add this DS9 capability to your direct-capture interface?

If you are interested in - there is another feature which is possible easy to implement to the TunerAssistent -> maybe you can generate a frequencies.reg file with detected channel and frequency information?! The MSDN article above describes how it works. I think this function sets an relative frequency range for that auto-tune feature.

What do you think? I'm your beta-tester Smile
Sorry, but its unlikely I'm going to change it now. Its done it this way for nearly five years, and has served us well, with very few people having problems. I'm pretty busy these days, with not too much free time, and pretty much all of that goes into improving digital support.
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#56
2009-01-18, 07:38 PM
sub Wrote:Trust me, Hauppauge maintain their own tables of channel/frequencie mappings. They've told me exactly what they do in the past. They still store the channel/country/tuning in their database.

Hmm ... in my database are only channel-numbers. No frequencies - never not - possible there are other tables outer this Access-db where frequencies are listed - but this is much more improbable.

sub Wrote:Sorry, but its unlikely I'm going to change it now. Its done it this way for nearly five years, and has served us well, with very few people having problems. I'm pretty busy these days, with not too much free time, and pretty much all of that goes into improving digital support.

We know - a stable system one's weight in gold. But I think, you can do something better - at the end, this is your project Smile. Today I searched for a Java-Library that can handle DirectShow API - there was a demo inside, which does nothing more than using DirectShow to capture from TV-devices - and it works fine - channel switching without any problem ..

At the moment I removed my analog capture settings from GB-PVR therefor I can record from digital channels at least.

Thank you for your support
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#57
2009-01-18, 07:54 PM
ozzor Wrote:Hmm ... in my database are only channel-numbers. No frequencies - never not - possible there are other tables outer this Access-db where frequencies are listed - but this is much more improbable.
Sorry, I didnt mean "table" as in "database table". This is a header file with lists of countries/channels/frequencies which is compiled (hardcoded) into the WinTV application (or more specifically in hcwTVWnd.dll).
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#58
2009-05-28, 08:38 PM
Hello fellow HVR users,

I am hoping this will not be considered a thread hijack, but I have a HVR-900H and I am trying to get the feed from the S-Video input - has anyone else had success with this?

Regards

Andrew
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