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MUSC 566: Video Sync Setup

Time Base

The Video Sync generator is the time base (speed) master. It is hard wired to the video sync inputs of the Digital Time Piece, the VTR, and the DA-88. The DTP creates the video-referenced word clock which you will patch to the DM-4800 console. The Word Clock out of the DM-4800 is normalled to the Digidesign 192 I/O (ProTools).

Address Base

The Digital Time Piece is address base (location) master. It drags the VTR around via 9-pin remote control. ProTools chases MIDI Time Code (MTC) by being put online. The DA-88 chase SMPTE Time Code (LTC) by putting machine 1 into chase.


VTR Setup

  • Note: Switches are under the transport panel that lifts up.
  • Set the VTR to Local control mode.
  • Set AudioCH2 Select to Time Code
  • Play the tape until you see Time Code on the display.
  • Stop the tape.
  • Set the VTR to Remote control mode.

  • Digital Time Piece Setup

    (via the Clockworks application)

  • Set the Time Base/Address Base mode: Video/Internal
  • Set the frame rate: 29.97 ND
  • Set the Word Clock (sample rate): 48kHz
  • If you want to change whether everything waits for the video to be ready...

  • Enable or disable Wait for device on play

  • Patch DTP WC out to DM-4800 WC In

    Setup DM-4800 to sync to External Clock

  • Go to Clocking page:
  • Set Clock Source to 48kHz Ext Word Clock

  • Open your ProTools session.

    If you need help making a session, see the ProTools Recording section. Be sure to store and allocate class work to your folder in the MUSC 566 folder on AudioDrive2

    Setup ProTools to sync to External Clock and chase MTC

  • Go to Hardware Setup under the Setups menu:
  • Set Clock Source to Word Clock
  • Set Sample Rate to 48kHz
  • Make sure the Ext light is lit on the 192 I/O
  • Go to Peripherals under the Setups menu.
  • Click the Synchronization button.
  • Make sure the synchronization device is a Generic MTC reader from the Digital Timepiece port (or any).
  • Click the Machine Control button.
  • If you want ProTools to send locate, start, and stop commands to the DTP, enable MIDI Machine Control. Send to Digital Timepiece.
  • Go to the Session Setup Window under the Windows Menu.
  • Set the session frame rate: 29.97
  • Set the Session Start time to 30 seconds or a minute before the start of program.
  • Tell ProTools where to store your audio files.

  • Go to Disk Allocation under the Setups menu:
  • Set each track to AudioHD2
  • Put ProTools ONLINE

  • For ProTools to CHASE incoming MTC, you must put ProTools Online.
  • Click the Online button on the transport panel or select Online from the Operations menu.

  • DA-88 Setup

    Menus

    There are 4 menus. Press GROUP to access menus 2 and 4. Hold down SHIFT and press GROUP to access menus 1 and 3. Press MENU to move thru the menus. Use the "-" and "+" keys to change the data. Hint: It is easier to change settings while the machine's clock source is Internal.

    Group 1 Menu

  • Format: use only if you know what you're doing
  • **Input select: analog or digital
  • Output timing: analog or digital
  • Key Mode: all or individual
  • Key operation: DA-88 enable or DA-88 disable
  • x-fade time: 10 - 90 ms
  • **Frame Display: On or Off
  • Group 3 Menu

  • TC Generator Start Time
  • TC Generator Reset
  • **Time Mode: ABS or LTC
  • **Playback T/C: ABS or LTC
  • **Reference T/C: 24, 25, 29.97DF, 29.97NDF, 30
  • Fs Shift: Off or On
  • Error Bypass: 10 or 30 Frames
  • Park Position: 0:00
  • Synchronization

  • Set Clock Source to Video
  • Patch DTP TC out to DA-88 TC In
  • Chase

  • Press Chase and then 1 to put DA-88 #1 in chase.

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