# MIDI Out Device Options

The MIDI Out Device Options window (available from the Studio menu's Devices window) determines the behavior of the MIDI Out devices, and consequently the External MIDI Instruments.

MIDI Out Device Options window (Pro edition)

The Send sync code section specifies the type of sync messages sent over the MIDI Out Device. This can be used to synchronize hardware or software sequencers with MultitrackStudio. The available options are None, MIDI Clock, MTC 24 frames/sec, MTC 25 frames/sec and MTC 30 frames/sec.

The Recording connections section defines which MIDI In and Out Devices will be connected when recording MIDI.
By default, messages received by the MIDI In Device will be sent to the MIDI Out Device that's being used by the recording track. This works fine if you're using a keyboard and a 19 inch synthesizer module, for example. However, it can cause problems if you're using a MIDI keyboard with built-in sounds that is both MIDI In and Out device: notes may be triggered twice.
Keyboards often have a Local Control setting that you can switch to Off, which disconnects the keys from the sound generator in the keyboard. This is the best solution because it allows MultitrackStudio to add MIDI effects, articulations and more.
If your keyboard has no Local Control setting you can uncheck the corresponding button.

Note: When recording a software instrument, recording connections for the MIDI channel used are automatically disconnected. This prevents your keyboard from also controlling a MIDI Out Device.

Note: If the MIDI Out Device forwards messages to the MIDI In Device a loop exists that will slow down (and ultimately halt) your computer. MultitrackStudio will detect this loop and disconnect the MIDI In and Out Devices to prevent the computer from freezing.