Leonid Makarovsky wrote:

Scott Dorsey wrote:
: At the first shot on the reel, the audio is in synch. At the last shot on
: the reel, the audio is out of synch.

: If you run the tape, how far in do you first notice that it's out of synch?

It's proportional. So in 2 hours it's off by .155 of a sec. In 1 hour it's off
by .0775 of a sec.... Etc...

I suppose a filter/plugin to do this doesn't exist (maybe I should write
one), but I would be awefully tempted to want to solve this problem by
throwing out individual samples instead of resampling. If you're off by
0.0775 seconds per hour, that's only 0.00215%, which is not even one
sample per second at the 44100 Hz sample rate and just over one sample at
48000 Hz. I'm sort of a purist, but I doubt it would be easy to notice
when one sample is removed here and there. It's equivalent to editing
out about 0.02 milliseconds of audio.

The code for a plugin to do this would be very simple. For a little
added flair, the plugin could look for periods of silence or quiet
parts (or parts without much high-frequency content or with lots of
high-frequency noise) and throw out more samples during those periods
and fewer at other times.

I should explain that if none of this makes sense in the context of this
discussion (or it has already been discussed), it might be because I
just got back from vacation and haven't been following the thread.
(By the way, anyone here ever do installed audio for a cruise ship?
This particular one might have had a deal with Yamaha, because everything
from pianos to drums to consoles was all Yamaha.)

- Logan

Logan Shaw wrote:
: I suppose a filter/plugin to do this doesn't exist (maybe I should write


During the video capture there exists an option to resample audio on the fly.
But I'm not sure it would be a good idea.

There's also an option to shift audio proportionally by number of %. I have
to contact the owner of the software package to find out what he's doing there.
If he just samples audio at say 48001Hz, then I'm good.

--Leonid