Identifying a synchronization point, Troubleshooting smpte synchronization – M-AUDIO Pro Tools Recording Studio User Manual

Page 1050

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Pro Tools Reference Guide

1032

This command can be used in “batch mode” to
set new time stamps for several regions at a time.
To do this, simply select several regions and
choose the Time Stamp command. One after an-
other, a dialog will open for each region, allow-
ing you to quickly enter new values.

Once entered, the user time stamps can be dis-
played in all regions currently placed in tracks.

To show (or hide) User Time Stamps in regions:

„

Select (or deselect) View > Region > User Time

Stamp

.

Identifying a Synchronization
Point

The Pro Tools Identify Sync Point command lets
you identify a specific point within a region for
audio spotting purposes.

Imagine the following sound effects spotting
scenario: You have a single sound effect that
consists of a creaky door slamming shut, fol-
lowed by a few seconds of ambient reverbera-
tion. The slam portion of the effect—which you
must precisely match to picture—occurs neither
at the very beginning of the audio file nor at the
very end. It is somewhere in the middle, making
it tough to spot. In this scenario, use the Identify
Sync Point

command to create a point in the re-

gion and synchronize that point to a SMPTE
frame.

To create a sync point in a region:

1

Do one of the following:

• Click with the Selector tool at the point in

the region that you want to synchronize to
a SMPTE frame location.

– or –

• Press the Down Arrow key while playing

back.

2

Choose Region > Identify Sync Point. The cur-

rent SMPTE time is automatically entered as the
SMPTE location for the sync point. A small
down arrow appears at the bottom of the region,
with a vertical, light gray line indicating the lo-
cation of the sync point.

Troubleshooting SMPTE
Synchronization

If you are having problems getting SMPTE syn-
chronization to work properly, the following
suggestions may help you troubleshoot and
solve common problems.

Stripe SMPTE Before You Record

All tapes in your setup (both audio and video)
must be striped with SMPTE Time Code before
any audio is recorded onto them or to Pro Tools.
If tapes aren’t striped, your system may seem to
work, but synchronization will never properly
occur. The machines and Pro Tools will drift far-
ther and farther apart the longer they run.

For more information on Sync Points, see
“Sync Points” on page 728.

Sync Point in an audio region

Sync point

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