UM:Vtr Settings

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VTR Settings

The VTR/Video Capture Settings tab contains a variety of configuration settings - including VTR status, video format used, and audio channels active. The available settings are similar between the capture and layoff modules.





Always check these settings carefully before proceeding with any video I/O.

VTR Deck Status Feedback



The four deck status fields are read-only display fields and provide feedback on :


Model of VTR attached (e.g. HDW-F500)
Status of the VTR (still,stop,play etc.)
Reported VTR frame rate
Record inhibit status (REC Lock).


Note - if the deck and project frame rates do not match you will get a warning message.



This message can be turned off by setting the general.prefs frameRateWarning parameter to false.

Refresh Button



The status fields should update automatically but you can perform a manual update by pressing the Refresh button.

Video Signal Feedback



The three 'SDI' fields are read-only display fields, providing feedback from the video card.

SDI Input

This shows the video format (resolution and frequency) of the video input signal.

SDI Sync

This shows the reported sync signal seen by the video card.

SDI Output

This shows the video format (resolution and frequency) of the video output signal

Video Format settings





Colour Space control

The first drop-down button allows you to set the colour space mode for your material.


YCrCb 422
RGB 444

RGB Scaling control

The second drop-down allows you to set the video scaling mode that the application should apply to the material:


Linear (SMPTE) - no scaling
Linear (CGR) - signal is scaled



This setting is very important in order to ensure that what you see on your monitor is what you will get on output. For a discussion of Colour Scaling modes, see the Setup Manual.

FPS control



VTR Capture only.


For certain bandwidth intensive formats we need to specify an optimal capture rate to use.


Default FPS - the default is the composition frame rate
Use 14.98 FPS (2K)
Use 15.00 FPS (2K)
Use 5.00 FPS (4K)


VTR Output only


This setting will blank out the top and bottom video lines.



This may be useful to hide any edge artifacts pushed into the video active area by certain effects (e.g. blurs).

Audio I/O


Note - the audio settings on the right are only available in the Capture module.


The audio channel buttons give feedback and also act as controls. They will automatically default to show how many audio channels are available (highlighting them in green), after which you can enable/disable them for capture/layoff.



2014.1 currently supports eight (8) channels of audio. The buttons for channels 9-16 are visible but disabled (and not used).

Capture Only


Options : AES-EBU or Embedded SDI


This sets the source of the captured audio data.


We support AES/EBU audio with the Bluefish Lust card (AES audio cables)

We support AES/EBU and embedded audio on the DVS Centaurus2 card.



The audio capture path is set separately in the capture Controls tab.

File Storage

Options : Broadcast WAV

Bit Depth

Options : 16 or 32


Number of bits per sample to capture.

Roll and Trim controls



How many seconds the deck should allow the tape to roll before capture/layoff starts.


When capturing or laying off the deck will cue to the VTR in point minus the value set in the pre-roll field. No actual capture/layoff takes place during a post-roll.


How many seconds the deck should allow the tape to roll for after capture/layoff ends. No actual capture/layoff takes place during a post-roll.

Video Trim

This numeric entry field / slider allows you to correct timecode offset errors that might occur when capturing or laying off video.


The Video Trim controls which frame of video is recorded at the edit (in) point and can be used to help fix video routing or system delays.

Edit Trim

VTR Output module only.


Similar to video trim, it allows you to correct any timecode errors causing the recorded material on tape to be starting at the wrong timecode.


The difference between video trim and edit trim is that the video trim setting will make adjustments to the time when the frames start being sent from disk to tape, i.e. when layoff starts, whilst the edit trim setting makes adjustments to when the deck actually starts recording.


The point at which the deck actually starts recording prior to receiving the video is what can be adjusted using the edit trim control, should you find that the layoff is not ending up at the correct timecode.

Project Settings for Video Output



If you intend to lay off video from your project, make sure you enable the Video Output setting on the project output format. See Cache Output.


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