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32khz audio slow
It’s early, but a search turns up nothing so I thought I’d ask.
This latest wedding (captured in SCLive) has channels 3&4 extending approx. 1.65 the length of channels 1&2! How the heck could this happen?
I can take it into Sound Forge and use Time Stretch to match the time, but getting the pitch to match exactly in Vegas just isn’t working.
I’m going to try to re-cap without scene detection, but I was just wondering if anyone else had seen this oddity?
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4 Replies
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I have never seen Scenalyzer do that. Any time I’ve captured 4-channel, both the WAV and AVI have matched lengthes. I think I’d try recapturing.
Edward Troxel
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New one on me too. I just finished recap on tape 1 with no scene detection and the properties for 1&2 say 48khz audio! 3&4 are correct at 32khz, but still why the length discrepancy? Video 1/2 are 58:05, 3&4 is 1:27:07!
Some sort of odd camera problem? Anyway, I see a force audio sample switch in SCLive; I’m going to try capping again forcing all audio to 32khz. Or 48? Confusing.
Darn shame I can’t use Vegas to cap. How can they hope to achieve greatness with HD when they still don’t fully support miniDV? If 4 channel miniDV audio is so hard for them, I wonder if they realize how many channels are included in the HD spec?
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If you ask 4-channel audio, the main responses you get are that the quality is not there. For the main type of videos I tape, the quality is fine but I will concede that the quality will be lower. 4-channel capture is the ONLY reason I initially purchased Scenalyzer.
DV allows either 2 digital audio channels (usually stereo) at 16 bit resolution and 48 kHz sampling rate, or 4 digital audio channels at 12 bit resolution and 32 kHz sampling rate. For professional or broadcast applications, 48 kHz is used almost exclusively. If you’re capturing 4-channel, I would force it to 32KHz.
Edward Troxel
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Well, forcing SCLive to either 32k or 48k had no effect at all.
But I’ve finally heard back from the shooter. He used a PD170 which apparently has no 4 channel audio capability, so all his stuff is on 1&2. The camera must write enough data to 3&4 to fool SCLive into capturing it, but it’s just 32khz ghosts of channels 1&2.
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