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OPERATING A VTR
Both A and B channels of Interlinear can operate videotape recorders connected to the VTR A and VTR B ports by means of standard 9 pin RS422 cables.
Interlinear transport keys and jog/shuttle knob can be switched between Clipbox and VTR by using the CLIPBOX and VTR keys.
When the VTR key is pressed, Interlinear transport controls are switched to VTR mode:
- Clipbox continues to operate normally but cannot be controlled by the transport keys.
- VTR can be controlled by the transport keys and the jog/shuttle knob
- VTR status is available on Interlinear display
- the VTR key is lit
When the CLIPBOX key is pressed, Interlinear transport controls are switched to Clipbox mode:
- the VTR continues to operate normally but cannot be controlled by the transport keys
- VTR status is not visible on Interlinear display
- Clipbox can be controlled by the transport keys and jog/shuttle knob
- the CLIPBOX key is lit
List of Transport Controls affected when Interlinear is switched to VTR mode
- PLAY.... VTR plays
- STOP.... VTR stops
- SRCH.... Jog and Shuttle modes of the knob control the VTR spooling functions
- VARIPLAY.... VTR speeds variable between still and play speed, forward only
- MARK IN.... sets a cue point for the VTR
- MARK OUT.... sets a recording length when editing from VTR to Clipbox
- CUE.... moves the VTR to the timecode set by MARK IN
- EDIT.... automatic transfer of material into and out of Clipbox. See below....
Using the EDIT key
The EDIT key can perform one of three editing functions depending on the operation of Interlinear:
- Copying from VTR to Clipbox to load taped material into Clipbox (CLIPBOX mode selected)
- Copying from Clipbox to VTR to save Clipbox material on tape (VTR mode selected)
- Copying from Clipbox to Clipbox for audio and video dubbing of material within Clipbox (which is described elsewhere in this manual)
Copying from VTR to Clipbox
First connect a VTR to the Interlinear VTR A port using a 9 pin RS422 remote control cable. Connect the digital output of the VTR to the input of Clipbox that Interlinear is controlling. Load the tape into the VTR, and select remote control mode. Return to the Interlinear control panel.
All following operations must be carried out at the Interlinear control panel:
- Press VTR key
- Use Jog and Shuttle knob to locate the start of the desired material on tape
- Find exact first frame and press MARK IN key
- Use Jog and Shuttle knob to locate the end of the desired material on tape
- Find exact last frame and press MARK OUT key
- Press CLIPBOX key
- Select MENU 8 to set audio channels and compression if required
- Press EDIT key
Interlinear will automatically copy the exact marked frames from VTR to Clipbox. The VTR will preroll five seconds before the desired material and play. Clipbox will start recording at the exact marked in point and stop recording at the exact marked out point.
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