Rosendahl nanosyncs HD - Manual (Page 10)

- 18 -
To synchronise a DAW to MTC time code open the nanosyncs HD
midi port in your DAW application software and make the according
settings. Please see also the instructions of your DAW software for
synchronisation to MTC.
The LTC to MTC translation is an independent process in the
nanosyncs HD and works within all operation modes.
When you use the nanosyncs HD as master clock (video reference
set to internal and audio reference set to follow video) you can still
use the LTC to MTC translation.
Example 1:
(1) A professional video machine is genlocked to the nanosyncs HD
video syncs.
(2) A digital audio workstation (DAW) is slaved to the nanosyncs HD
word clocks. The nanosyncs HD audio reference is set to FOLLOW
VIDEO.
(3) Your DAW software controls the video machine via 9-pin.
(4) The LTC output of the video machine is connected to the
nanosyncs HD and sent via USB to the DAW software as MTC.
Example 2:
(1) An analog multitrack audio tape recorder with LTC time code
recorded on track 24 feeds LTC to the nanosyncs HD.
(2) The nanosyncs HD audio reference is set to LTC.
(3) A digital audio workstation is slaved to the nanosyncs HD word
clocks/ super clocks.
(4) The DAW software receives time code from the tape machine
translated to MTC from the nanosyncs HD via USB.
- 19 -
MMC to LTC:
Midi Machine Control (MMC) is a midi protocol to remote a video
machine or an audio recorder.
Most DAW software applications are able to send MMC commands.
The nanosyncs HD accepts MMC commands via the USB to control
the integrated LTC time code generator (LTC output on C10).
In firmware 2.0 the following MMC commands are implemented:
Command Description
F0 7F 7F 06 01 F7 MMC „stop“
stops the LTC generator
F0 7F 7F 06 02 F7 MMC „play“
starts the LTC time code generator
F0 7F 7F 06 03 F7 MMC „deferred play“
starts the time code generater after active
MCP (locate)
F0 7F 7F 06 44 06 01 hr
mn sc fr ff F7 MMC „locate“
sets generator to time code position
sets the LTC format
When receiving MMC commands the internal time code generator is
referenced from the SD and HD video generators. When a frame rate
matches the time code standard, the LTC will also be phase locked
to the video generator.
29.97 and 23,98 non drop frame rates are not defined in the MMC
protocol. The nanosyncs HD generates 29.97 or 23.98 non drop time
code rates when receiving 30 or 24 non drop MMC play commands
and the HD generator is set to -0.1% rates.
(HD FPS LED -0.1% in column 5)