Channel Changes and Audio/Video issues

[rbmcgee]

Hi all,

I'm made great progress with 2.5.9. I'm in the US and have directv (H20) feeding my Colossus card via HDMI for both video and audio. I use the hauppauge ir blaster to change channels. I'm on WinXP.

On the decoder screen I've got:
VMR9 custom
Default
Default
Disabled
Arcsoft video decoder
Disabled
AC3Filter
Disabled
Arcsoft Audio Decoder HD
Disabled

Checkmark - only use...

The only way I change channels is going back to the main TVGuide and choosing the show with the keyboard.

All of the channels work great (liveTV and recording) for both audio and video.

Here's the problem (live tv only, recordings work fine): I'm watching one channel and then I go back to the guide and choose a different channel. Sometimes this works fine and sometimes it doesn't. Sometimes the video stutters and there is no sound. If I go back to the guide and choose that channel again, everything works fine.

The way I figure it, the new channel uses a different mix of decoders vs. the prior channel and is initially causing a timing issue insofar as to when the "new graph" is "built". When I go back to the guide and re-choose the same channel, the timing issue is solved and the new channel plays fine.

Has anybody else seen this issue and is there a setting that I can adjust to solve this problem. I would rather not change any filters because after much monkeying, I've finally got the setup that works on every channel.

Thanks

[mvallevand]

Pretty much since day one with my HDPVR I had to configure my STB to output a set resolution (I choose 720p) or the recordings would screw up, the graph always started with the setting of the previous graph. Tuning the same channel twice gives you the same resolution which is why you see the improvement.

Martin

[rbmcgee]

Hi, Thanks for the info. My STB is already set to output 720p always. I think it has to do with the audio. Although the video is set at 720 the necessary audio filter changes as you move across stations. I even manually (without going through NPVR) changed the channel from TCM to CNN and when it got to CNN, there was no sound. The video was fine, but no sound. This obviously means that the audio requirements are different between these 2 channels. That's when the problem occurs. There seems to be a problem when NPVR has to move from one audio filter to another. Unfortunately, the audio filters I have specified are the necessary ones so there is no eliminating any.

[mvallevand]

The you probably need the PreferAC3 registry setting too.

Martin

[rbmcgee]

Yeah, I've already got that as well.