Strange problem - dual audio when capturing

Sonicikd wrote on 12/7/2001, 5:21 AM

Hi,

Still playing around with the demo, looks good so far.

One problem I have noticed is that when capturing video the audio from the capture source is played twice, one feed followed by another one about 1/2 a second apart. The captured video plays back fine its just while capturing that you get the "echo". Any ideas?

Iain

Comments

Chienworks wrote on 12/7/2001, 11:47 AM

Is this an analog capture?

You're probably hearing the sound coming directly from your source into
the sound card, and also hearing the "Preview Audio" from the capture
program. You can uncheck Preview Audio in Options to hear only the
source input, or you can mute the line in in the sound card's playback
mixer panel to hear only the capture program's output. Neither of these
changes should affect what actually gets captured.

Cheesehole wrote on 12/7/2001, 3:00 PM

if it's DV capture:

then you should turn off 'preview audio' while capturing. the audio takes up CPU cycles (hence, the delay) and could potentially lead to a dropped frame, so it's best to turn that off just while you are capturing.

- ben (cheesehole)