LANC to MIDI Time-Code Generator
 


 



Converts Control-L (LANC) video protocol to MIDI Time Code (Quarter Frame) 

Automatically detects 25, 30 and 30DF (Drop-Frame) frame formats. 

Transmits MTC during PLAY or RECORD 

No power supply required 

Compact - all circuitry is integrated within the MIDI connector. 
The LANC MIDI Time code generator is a simple, 
lost-cost way to synchronise MIDI and Music sequencers to video playback and recording.  
The generator reads the Time Code information using the LANC (Control-L) protocol found 
 on Sony (and some other manufacture’s such as Canon) video equipment and converts it into MIDI Time Code (MTC).








MTC Transport from MIDI OX 
The LANC MTC Generator automatically senses the type of frame format being used. 
 However, the difference between 30 fps and 30 drop frame can only be detected on 
 the minute transition when the minute is not exactly divisible by 10[*]. 
 
For this reason once the frame format has been detected it is stored and used 
 as the default next time the cable is used. 
 If the cable is used with a different frame format system it is recommended that the cable is connected to the video source 
 and the video allowed to play over a couple of minute transitions. 
 (Usually the Synchronisation device or software will show the type of MTC being received – this can be used to confirm 
that the correct frame format has been detected).
The Cable connects into the MIDI IN port of the synchronisation slave (e.g. hardware or software sequencer) 
and the 2.5mm jack connector to the video device LANC/Control-L port.

 
Specification
 




Input:   
Control-L (LANC) video protocol with frame resolution time-code.

Output: 
Midi Time Code Quarter Message (MMA MIDI 1.0 Specification)

Frame Latency 
3.0ms (constant latency from video frame sync pulse)

Quarter Frame Rate 25fps
10ms +/- 0.064ms

Quarter Frame Rate 30fps 
8.33ms +/- 0.064ms