Creative 0404 Manual De Usuario

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3 - PCI Card & Interfaces
The Sync Daughter Card Option
10
Creative Professional
 
The Sync Daughter Card Option
 
The Sync Daughter card option adds word clock in and out, SMPTE (LTC) in and out 
and an additional MIDI output for transmitting MIDI Time Code (MTC). MIDI Time 
Code is a special rendering of SMPTE that can be transmitted over MIDI cables. For 
additional information about SMPTE, please refer to 
Synchronization is a basic technique needed for connecting multiple pieces of 
equipment. Word Clock, S/PDIF or S/PDIF optical are all industry standard methods of 
synchronizing digital equipment together at the system sample rate. The master clock 
source is set in the Mixer Session Settings menu. See 
 for more infor-
mation.
Recording equipment can also be synchronized so that two audio recorders or an audio 
and video recorder can lock together as a single machine. SMPTE and MTC sync are used 
because they convey absolute time information. Word clock, or S/PDIF sync only 
synchronize the sample rate and unlike SMPTE and MTC, do not convey song position 
information. In a synchronized system, there is usually one MASTER machine, and one 
or more SLAVES. When the master starts, the others will follow (chase).
The Sync Daughter card is also a format converter. It converts incoming SMPTE time 
code to MIDI Time Code (MTC) and passes this information to the host computer to be 
used by a sequencer or audio recorder application. When your computer application is 
the “Master”, the Sync Daughter card converts MTC into SMPTE and sends it out to 
another SMPTE device.
Connecting Cables to the Sync 
Daughter Card
The Sync Daughter Card contains Word Clock 
inputs and outputs for clock signals used in a 
studio where a common sample rate reference is 
required to keep multiple pieces of digital 
equipment running together. This is referred to 
as “house clock” or “house sync,” and is set to 
the actual sample rate of the system. Use a cable 
with BNC connectors to connect incoming clock 
signals to the Word Clock In jack on the Sync 
Daughter card. Connect the Word Clock Out to 
your other digital equipment to use the Sync 
Daughter Card as the Master Word Clock source. 
See 
The Sync Daughter Card provides SMPTE (LTC) 
sync in and out on two 1/4” phone jacks. LTC 
can be recorded onto an unused audio track on 
an analog or digital recorder and then fed back 
into the SMPTE input to synchronize your 
computer sequencer/recorder. See 
MIDI Time Code is also output whenever MTC 
is being generated by the host application 
(sequencer or audio recorder). A special cable 
converts the mini DIN to a standard MIDI jack.
Daughter Card.
Word Clock
In
Out
MTC Out
SMPTE
In
Out