Ok so I have my system running and all is good minus a lil static through the speakers. I can't for the life of me figure out where it is comming from. If I listen to the direct audio (5 seconds ahead of image) there is no static, I listen to the audio through the PCM/myth it has a good deal of static. Why would the direct feed have no static yet the other have static, also how can I fix this?

Move your audio cables away from the back of your TV and/or your video cables. If the static stops or changes it's most likely cross talk. I tend to see this in my setup, any kind of regular pattern on the screen (text menus, grids, ...) will make it more obvious. Grounded shielding around the audio cables or even just physical seperation are your best bets in this case.

thats the issue, I have tested it and as stated before there is only static when running through the mythtv delay recording line. Running the direct line there is no static.

I don't belive the static would occur through the video delay and not the direct line as well if it was cross talk. I'm thinking it is more in the system itself passing the audio through the tuner card to then be synched with the video is where it is occuring. Which I'm not sure why at this point, unless the system can't keep up which I think would be unlikely.

System is a:
Abit BE7-s 400mhz fsb
P4 1.8 G
512 ram
audigy 1 ex
winfast tv2000xp expert
ide H/D 7200rpm

I have one of those (grumble) TV2000 "Expert" (and I use that term in the least complimentary way possible) cards and have always had issues with it's audio - Crackling, hissing, static, whatever it manifests itself as. I have tried it with the latest/greatest (Windoze) drivers and never been completely satisfied with it. If you ever come up with a solution, either Windoze or Linux, please do let us know. Perhaps I have a bad board...

Noise always comes from somewhere.(*) What you need to do is trace the path of the audio signal, sample the sound at each point along the way and figure out where. When you say "the direct line" it's not terribly clear what you're talking about since you haven't provided enought connectivity data. Are you using an external box with seperate audio and vidoe outputs and talking about before the signal goes into the capture card? Are you using a YUV frame grabber and talking about before it goes from the tuner card to your sound card? Can you isolate the interference as being in the capture card, or the sound card or ...

(*) Noise actually comes from _everywhere_ but you're probably talking about some kind of big interference rather than the inevitable chaos stuff.

direct line = audio un-synched with the video, ie. the raw feed (pre processed)

video delay = audio that has been processed by the system to synch with the video (post processed)

Myth takes all input when using a direct connection and buffers it so you may use the rewind and fast forward function. At least that is my understanding, correct me if I am wrong, please.

Pre-processed = no static
Post-processed = static

Something is happening in the box that is creating the static I think it has to do with the machine and processing the stream, I dunno. The system has a direct line with the cable feed from the wall to the tuner card.

I hope this clarifies the attempted question in my first post.

Mostly by inference... Let me try some yes or no questions.

1) Are you using a YUV (aka Analog Framegrabber, aka Software encoder, aka BTTV driver) card? I'm assuming that the answer is "yes" based on other clues.

2) Are you talking about a difference between the output of that card, which is then looped into the sounds card mic. or line-in input using a jumper cable, and the (internal) output of the PCM decoder as heard on the sound card output?

3) If _NO_ to #2 are you talking about the difference between when you mute the mic. or line-in that you're using and unmute PCM, versus when you mute PCM and unmute the mic. or line-in? (Note that you should ONLY unmute the one external input that you're using, not both, and that you should try both to see which is cleaner.)

4) If yes to #2, have you done a physical connection check to make sure that the plug is clean, not loose and that the socket itself isn't wobbly? (they're slightly fragile and it's easy to crack the solder joint that they depend on for both electrical connectivity and physical stability.)

Ah ha it becomes more clear.

BTTV, jumper cable

the PCM decoder is where the issue is occuring.

allow me to reference this post:
http://mysettopbox.tv/phpBB2/viewtopic.php?t=12819

This post shows the issues I have been having with the card itself, reading that I need to re-run alsaconf and rename stuff. I want to make sure that this is needed before I do it.

Using the audio line that is not synched with the video (analog mix) I need to set the audio sync funtion in mythtv to over 7000ms and then the video just goes choppy and quite horrid, but the audio is clean. There is also the issue of always hearing the audio even when not in Mythtv frontend.

I did check all the cables and they are all seated firmly.

I am sorry that this is quite a hassle for you with my lack of technical knowledge regarding these items. Given that we have had to stoop to yes/no questions. I'll no it's bad when it turns multiple choice