Audio capture problem

rrrromz wrote on 10/7/2002, 3:16 PM
Has anyone encountered this problem. I've just finished editing a 20min video and printed to DV tape. The video sounds fine when I play it back from my DV camcorder to my TV, but when I try recapturing the video using VV capture, the sound clips/crackle. I've also tried capturing on my second system with the same result. Tried swapping the Firewire cable, failed. I don't know if my DV camcorder is starting to fail, it is fairly new. I've tried adjusting the volume and reprinted DV tape, same result.

Comments

Spirit wrote on 10/7/2002, 8:27 PM
I'm not sure I know exactly qwhat you mean, but maybe your soundcard may not be up to the job. Perhaps the rate you're trying to capture at is too much for the card to handle. What soundcard are you using ?
SonyDennis wrote on 10/7/2002, 10:48 PM
A DV/Firewire (1394) capture is pure digital, there is no possibility of clipping or distortion added. Whatever audio is on the tape is what ends up in the file. I don't understand how this tape could play fine on your TV, but be all distorted in Vegas. Perhaps there are some realtime filters being applied to the audio during playback that is causing the distortion? Can you open the AVI file in any other program and see if it's distorted in there?
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rrrromz wrote on 10/8/2002, 1:51 PM
Yes, I've tried it in Premiere with the same result. I've also tried previewing the audio in VV Capture before actually capturing, same result. I did noticed on some of my recently captured footage to have the same problem, but not as bad, I thought the Band in the reception was just too load for my camcorder when the shots were taken. But now, I'm just trying to recapture a footage that I just printed to DV, but works fine when playing out to TV. I am going to try my other DV camcorder, it's a Sony VX2000, to find out if it's the camcorder (Sony DCR18). I'm not sure if it's the sound card, I encountered the same problem with my other system. Which I've captured a two hour piano concert on that system recently without any problem. Thanks for your input. I'll keep you posted.
Chienworks wrote on 10/8/2002, 4:30 PM
If your captures and prints are done DV through firewire, then the sound card isn't in the signal path at all.
SonyDennis wrote on 10/10/2002, 2:32 PM
Chienworks:

The soundcard is in the signal path on playback; perhaps the file is fine and it's a playback issue. He should try the file on another computer to test this theory.

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dipitsch wrote on 10/10/2002, 4:36 PM
Hi rrrromz!

I have this problem on my PC using VV! But I think my PC is very slow(333Mhz-Celeron, and 192 MB Ram), and I have many dropped frames in capturing, when is frame dropp - missing audio(I think this). I'll try capturing with other aplications (Adobe Premiere...) and I have much more dropped frames, but this aplication needs more powerfull processor (min. 600 mHZ). Tell me plese what processor do you have, and do U have dropped frames?


dipitsch
edbeach wrote on 10/10/2002, 10:28 PM
I had what sounds like a similar, but not exactly the same, problem about a year ago, while using VideoFactory, and later VV. It took me 9 months, as the problem got progressively worse, to figure out that the problem was with my Canon ZR10. I have not seen anyone else report this problem.

After capturing with VF, I got what sounded like short (about 0.1 sec.) bursts of static. When I captured the video with VideoWave III or StudioDV and played the captured video back through the computer it sounded like the speaker cases rattled at high volume. When I played the VideoWave captured clip back through the TV it sounded OK, but I could hear the rattling if I used earphone with the TV. (I attribute that to the possible poor high frequency response of my TV). The Canon Regional Repair Center adjusted my camera to the original specs and said it was fine. It took a second trip to the repair center with a CD I made from VF to document the problem to get Canon Repair to hear the problem.

I’m guessing that the audio proxy file of VV did something to exaggerate my audio problem, but if anyone can tell what really happened in VV, I am curious.

I love VV, but I still have (other) problems with my Canon ZR10.