Knowledge Base

MOTU Digital Performer on the same computer via MMC & MTC

Introduction

The following explanation and screenshots are related to Digital Performer version 10.13, but the steps will be similar for other versions.

Video Sync features virtual MIDI ports, which mostly removes the need to create network MIDI sessions in Audio MIDI Setup in order to connect to a DAW on the same computer. When Video Sync is launched, it will create virtual MIDI ports named Video Sync MTC In, Video Sync MMC In & Video Sync Trigger In - which will automatically be pre-selected in Video Sync, & visible in your DAW.

MIDI I/O with virtual ports selected

For this reason, it is advised to always launch Video Sync before launching the DAW. Failure to do so, may cause some of these settings to be reset to default - such that they need to be re-configured in Logic Pro X® again.

Some DAWs like Cubase for example do not reconnect the virtual ports automatically if Video Sync is opened after the DAW. In cases where this happens often, it may be better to consider setting up ports via Audio MIDI Setup on the same computer.

Video Sync MTC / MMC Setup

First in Video Sync, go to the SYNC tab in Preferences & set the Sync Method field to MIDI.

Next, make sure that all the ports are set to their default values Video Sync MTC In (virtual) & Video Sync MMC In (virtual) as per the image below:

MTC/MMC In Settings

Digital Performer MTC (MIDI Timecode) Setup

Open the Preferences and in the Play And Record secion of the list on the left, click on the Transmit Sync menu.

Set the Transmit MTC to option to Video Slave MTC In (virtual).

Click the Done button at the bottom of the window.

Digital Performer Transmit Sync settings

To change the timecode frame rate, either use the dropdown Frame Rate menu in the main control bar; or go to Setup > Frame Rate.

To change the start timecode of your sequence, go to Project > Sequences > Set Chunk Start Time.

Digital Performer MMC (MIDI Machine Control) Setup

There is no need to set up MMC separately with Digital Performer, as it sends MMC style positioning information using a bespoke implementation of MIDI Timecode (MTC).

However, positional information is only sent from Digital Performer when scrub mode is not engaged.

Enabling Synchronised playback

The incoming timecode and the timecode rate should now be seen incrementing in the SYNC tab of the Preferences window when hitting play or scrubbing within Digital Performer.

Video Sync’s SYNC Preference showing incoming timecode

Click the Sync button to the left of the transport buttons to follow external sync - so that it turns blue.

Video Sync sync online button

Video Sync MTC/MMC sync is now online & ready to go. Hit play in Digital Performer® and Video Sync will play back in sync.

Dealing with MTC sync with high frame rate content

Video Sync allows for synchronised playback of clips running at up to 60 frames per second. Being a standard from the 80s, MIDI timecode (MTC) does not support frame rates higher than 30 frames per second. To be able to play timelines with these high frame rate clips in sync to MTC, Video Sync will try to match the incoming TC at half the frame rate. For example, if the timeline has a 50fps clip, Video Sync will play it in sync if a 25fps MTC source is supplied.

In the timeline list, the timeline frame rate is shown here:

Timeline timecode frame rate display