If the mag in question is 1/4", it may also be worth checking to see if the
track has the center neopilottone track. The signal cancels itself (two
signals out of phase with each other) on a regular 1/4" deck, but using a
deck with the right circuitry locks it to an associated picture. This was a
common approach to recording film sound in the 70's and early 80's.
Steve
Steve Greene
Audiovisual Archivist
Office of Presidential Libraries
National Archives and Records Administration
(301) 837-1772
On Wed, May 13, 2015 at 3:11 PM, David Crosthwait <[log in to unmask]> wrote:
> John,
>
> I believe in these cases of optical verses mag. that the amount of change
> may be micro percentages and may indeed restore the pitch back to an exact
> match to the optical print pitch. I do not have Shai's specs but on the
> assumption that we are talking about a mere drift over an hour and a half
> (for example), an FCP adjustment is all that is necessary. However, in a
> case where the mag was made from a 25 frame per second xfer verses the 24
> frame version, a major difference will persist.
>
> David
>
>
>
>
>
>
> On May 13, 2015, at 11:30 AM, John Haley wrote:
>
> > Hello Shai,
> >
> > Shortening the audio file will result in raising its pitch,
> > Best, John
> >
> >
> >
> >
> > On Wed, May 13, 2015 at 2:08 PM, David Crosthwait <[log in to unmask]>
> wrote:
> >
> >> Shai,
> >>
> >> Import both into Final Cut and adjust the speed of the mag audio track.
> We
> >> do this once in a while with good results.
> >>
> >>
> >> Best Regards,
> >>
> >> David Crosthwait
> >> DC Video
> >> Transferring NTSC, PAL & SECAM quad and helical source tapes!
> >>
> >> [log in to unmask]
> >> www.dcvideo.com
> >>
> >> Follow DC Video on Facebook: https://www.facebook.com/dcvideo
> >> Follow DC Video on YouTube: http://www.youtube.com/user/dcvideoonline
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> On May 13, 2015, at 11:52 AM, Shai Drori wrote:
> >>
> >>> Hi everyone.
> >>> I would like to know if there is a program that will take one audio
> >> track and change it in the time domain to match another track. I have a
> >> movie soundtrack that needs to be moved in time to match the original
> >> sound. The original is from the optical track and thus is in sync with
> the
> >> picture. The other track sounds much better but is from a magnetic
> source
> >> that is not time coded and so runs close but not in sync. I would like
> to
> >> change the time of the good track so that it will match the optical
> track.
> >> Any ideas?
> >>>
> >>> --
> >>> Cheers
> >>> Shai Drori
> >>> Timeless Recordings
> >>> [log in to unmask]
> >>> בברכה,
> >>> שי דרורי
> >>> מומחה לשימור והמרה של אודיו וידאו וסרטים 8-35 ממ.
> >>
>
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