6 - Appendix

Sync Daughter Card Supplement

Mode (fps)

Sets the transmitted frame rate when striping SMPTE.

 

 

SMPTE Striping

Edit this field to set the start time in hours:minutes:seconds:frames for

 

striping SMPTE.

 

 

Stripe Button

Initiates SMPTE Time Code generation at the SMPTE output beginning at

 

the time set in the striping display.

 

 

Stop Button

Stops SMPTE striping. This button also stops SMPTE when One-Time Jam

 

Sync has been initiated.

 

 

Flywheel Mode

Selects one of the four Flywheel modes. See the descriptions below.

 

 

Output Level

Sets the SMPTE output level from -10dBV (consumer) to +4dBu (pro).

 

 

FLY/JAM Frames

If flywheel mode is on and a dropout is detected this is the number of fly-

 

wheel frames that will be output before the sync card stops and chases.

 

 

Word Clock

Turns word clock termination on or off. Except in special cases, this con-

Termination

trol should normally be left on. See “Word Clock In/Out”.

 

 

SMPTE/MTC

This control selects the source of the SMPTE output jack. The choices are:

Output Source

Host MTC or the SMPTE Input jack (to regenerate SMPTE).

 

 

SMPTE Modes of Operation

Host Mode

The host computer is the source of synchronization. MTC messages are sent to the Sync Daughter Card from the computer application and converted into SMPTE. MTC is also output from the MIDI port on the Sync Daughter Card.

External Mode

SMPTE messages from SMPTE In are converted to MTC (quarter-frame messages) and sent to the host application. This happens automatically whenever LTC is received at the SMPTE input jack. Clean SMPTE data is also transmitted from SMPTE Out if “SMPTE (Regenerate)” is set.

Flywheel Mode

If the incoming SMPTE data is corrupted or missing frames, MTC code will continue to be output if “Flywheel mode” is enabled. The flywheel modes are described below.

Flywheel Modes

Off

Upon any dropout, MTC stops and the Sync card monitors the input for

 

valid code. If valid code is again received, it chases and relocks.

 

 

Fixed 0-127

Upon any dropout, MTC continues outputting Quarter-frame messages

 

at the same rate (flywheeling). When a dropout is detected, this is the

 

number of frames that will be output before the Sync card stops output-

 

ting MTC and monitors the input for valid code. If valid code is again

 

received, it chases and relocks.

 

 

Continuous

Upon any dropout, MTC continues outputting Quarter-frame messages

 

at the same rate (flywheeling). The Sync card monitors the input for valid

 

code and continues flywheeling until valid code is received, then relocks.

 

 

1-Time Jam Sync

Upon any dropout, MTC continues outputting Quarter-frame messages

 

at the same rate (flywheeling) without monitoring the SMPTE input until

 

the Stop button is pressed.

 

 

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Creative Professional

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Creative 0404 owner manual Smpte Modes of Operation, Host Mode, External Mode, Flywheel Modes
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0404 specifications

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