I recently tried to create a MTC generator in Max. It seems to work but when the quarter frames are sent to a MOTU MIDI Timepiece AV to create LTC, the interface doesn’t sync well.
It does only when Max is set to overdrive, with audio interrupt AND a very small vector size (like 8).
i.e. Quarter frames have to be sent at a very precise.
So I tried LiveMTC, as it is built on Max. Unfortunaltely (but unsurprisingly) it doesn’t seem to work better. The MTC it generates it well understood by other softwares, but not by the MTP AV.
MTC outputs from other DAW (like Digital Performer) or even from Lockstep (with smpte~ as LTC input) WILL sync the MTP AV.
Did someone get reliable sync sending LiveMTC to LTC converters?