Sound dropping out on capture

mekelly wrote on 3/9/2010, 11:08 AM

I have a Canon HV20 that I've used Vegas Pro 8 to capture for the last two years with no problem. Now when I capture in either Pro 8 or 9 the sound is not captured for parts of most clips.

In other words, the video captures fine and in most cases sound is captured at the beginning and end of each clip, but completely goes away in the middle.

Now for the strange part; the clips and sound are captured correctly in HDVSplit. Never any dropped sound.

The obvious question is, what changed. I have tried to go back and double check for new software, etc. but can't isolate any changes.

Has anybody seen this behavior before? The camera's good, the tapes good (because I can hear the sound on in-camera playback and when captured using HDVSplit) but Vegas (both 8 and 9) drop more sound than they're capturing now.

Any help or leads would be appreciated!

Comments

L8R wrote on 3/9/2010, 11:17 AM

I have experienced this as well. I shoot and capture using my Sony FX1.
I've recaptured the clips to see if it happens again in the same spot. Sometimes it does some times it doesn't. Same with when it splits the video into a separate clip although there are no dropouts or scene detection is off.
I don't have a solution other than recapture it.

daryl wrote on 3/9/2010, 11:23 AM

Yes, I have had the same thing, with my XH-A1. I have not seen the problem with my HV20, but I don't use it nearly as often as the A1.
The problem I have seen usually happens when there are a lot of "scene detection" clips per capture. The audio will drop out in the middle of a clip, then work ok beginning on the next clip.
Usually it's just a clip or two and I'll go back and recapture that particular clip, which captures just fine. Sometimes I'll do a complete re-capture.
It happens on two different machines, HOWEVER, on my main machine, an i7 Win 7 64 bit, I disabled the on-board audio and got a sound card, I have not had the audio problem at all since then. That's not why I got the audio card, but I noticed the capture problem disappeared. Kinda odd, but I'll take it.
I did notify Sony about the "fix", thought it might come in hand for them.

mekelly wrote on 3/9/2010, 11:58 AM

Thanks for the insight. I am using the onboard sound, I guess I could put in a sound card and try that.

It's just interesting that it worked for two years and then stopped working.

I guess I'll just capture with HDVSplit as it's dropping sound on probably 70-80% of the clips so going back and recapturing isn't an option for me.