Random audio glitch when capturing digital video.
 

Hello,

I am currently trying to capture video that has been recorded on my DirecTV DVR.

I am using a Datavideo TBC1000 & external Hauppage HD PVR2 to capture the video with my PC.

The picture that i capture is perfect but there is a very small & very random audio glitch that occurs during some of the captures. The glitch is a split second buzz that occurs about once on some of the captures.

I have then gone back and captured the same program again & the buzz will not be present but then happen again on another capture.

Does anyone have any idea what could be causing this & how to fix it? Any help would be greatly appreciated. Thanks.