e.lectronick
3rd March 2005, 17:02
Here's an interesting link claiming to help A/V sync when capturing by setting cards to a master clock (I think).
http://support.microsoft.com/default.aspx?scid=kb;en-us;887131
I was just wondering if anyone had seen this? I found it while digging through ATI's website under discontinued products (E-Home Wonder, I think)
Anyways, I'd been reading up on the different ways that A/V can go out of sync, and one was attributed to slightly different sample clock speeds on the capture card and audio card.
I'd been looking for a way to sync consumer level capture cards with an incoming AC3 audio stream using my M-Audio Bit-accurate S/PDIF input. I figured that since S/PDIF acts as a master clock when input into a soundcard, why couldn't it act as the master clock for capturing video as well? Then, at least the two streams would be captured in sync with each other. So, far I haven't come up with any solutions, just a bunch of ideas I want to work (but probably won't)
Comments, ideas?
-Erik
http://support.microsoft.com/default.aspx?scid=kb;en-us;887131
I was just wondering if anyone had seen this? I found it while digging through ATI's website under discontinued products (E-Home Wonder, I think)
Anyways, I'd been reading up on the different ways that A/V can go out of sync, and one was attributed to slightly different sample clock speeds on the capture card and audio card.
I'd been looking for a way to sync consumer level capture cards with an incoming AC3 audio stream using my M-Audio Bit-accurate S/PDIF input. I figured that since S/PDIF acts as a master clock when input into a soundcard, why couldn't it act as the master clock for capturing video as well? Then, at least the two streams would be captured in sync with each other. So, far I haven't come up with any solutions, just a bunch of ideas I want to work (but probably won't)
Comments, ideas?
-Erik