User Manual

SYNCHRONIZATION AND ADVANCED MIDI
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6. Trim the “External Sync Offset” setting until the “clicks” from the both sources sound at exactly the same time.
7. Close the Preferences dialog in Record.
If Latency Compensation isn’t enough
There might be situations where you can’t compensate enough in Record to make two software applications run in
sync. This might especially be true if the other application is an audio sequencer, that is if it can record and playback
both audio and MIDI.
This problem is an indication of the fact that the other application has not been set up properly and that its audio play-
back is not in sync with its own MIDI playback.
! This is not something that you can or should compensate for in Record. Instead, follow the instruction included
with the other application to make sure its MIDI playback and audio playback are correctly locked to each
other.
About the beginning of the Song
Due to the latency phenomenon, described in “About latency”, Record needs some time to correct it’s playback speed
when it first receives the Start command. This can be noted as a small glitch in the audio playback, when the program
starts. If this is a problem, you need to insert a couple of empty measures at the beginning of the Song. Proceed as
follows:
1. Set the Left Locator to “1. 1. 1.0” and the right Locator to “3. 1. 1.0“.
2. Click somewhere in the main sequencer area to move the menu focus to the sequencer.
3. Select “Insert Bars Between Locators” from the Edit menu.
4. Set up the other device/application, so that it also plays two empty bars at the beginning.
About MIDI Song Position Pointers
MIDI Clock actually consists of five type of messages: The actual clock (the metronome that establishes the tempo),
Start, Stop and Continue commands and Song Position Pointers. This last type of message contains information
about positions, so that a program for example “knows” where in a Song to start playback from.
Normally, this ensures that you can locate to any position and activate playback from there. In older devices, Song Po-
sition Pointers might not be implemented. This means that you will be able to synchronize properly only if you start
both devices from the absolute beginning of the song.
About Tempo Changes
Again, due to the latency phenomenon, Record needs a bit of time to adjust to changes in tempo. If there are abrupt
changes in the MIDI Clock, due to drastic tempo changes in the master, you will note that Record will require up to
one measure to adjust itself to the change. How long this actually takes also depends on the precision of the incom-
ing MIDI Clock. The more precise it is, the faster Record can adjust to it.
If this adjustment is a problem, try to use gradual tempo changes rather than immediate ones.
! When Record is synchronized to MIDI Clock, there is no Tempo readout.