Control Tab Screen. AJA KONA LH/LHe

Control Tab Screen

KONA LHe Installation and Operation Manual — Using The KONA LHe

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The KONA LHe can be controlled by various software applications running on a host Mac as well as be used as a Macintosh Desktop extension. The Control Tab is where you select how the card directs video and is used by application software. This screen also provides control for configuring output timing with regard to external reference video and horizontal/vertical delay.

At the top of the Control screen it will show the current Default Output and the application currently controlling it (if there is one). For example, in the screen shown here, the default output is a Test Pattern.

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AJA Control Panel, Control Tab

Control Tab Screen Settings

Default Video Output—this is where you select what the KONA LHe will output as a default when no application has control of it, such as when the Finder is active. Since it can be controlled by software applications as well as its own control panel, the output can change dynamically. Some video applications will grab control of the KONA LHe inputs/outputs. These settings determine what happens when an application is active that does not grab the KONA

LHe inputs/outputs.

AJA Control Panel, Control Tab, Default Output Pulldown Menu

Default Output Choices and their meanings:

Input Pass through: this selection directs KONA LHe to route video from its selected input through the card for processing and output. When this selection is in effect, all Primary/

Secondary Format selections are available for selection in controlling the output. This in effect makes the LHe a converter when used in conjunction with the AJA Control Panel application and a Mac.

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No applications other than the AJA Control Panel need to be open to convert audio and video from one format to another. For example, if an SD source tape needs to be dubbed to an HD tape, the signal might be routed from the SD VTR to the LHe, configured for upconversion in the Control Panel and then passed through to the HD VTR for recording.

Test Pattern: this selection directs KONA LHe to output a choice of preset pattern when no other application is using the card. In addition to the provided test pattern choices, a

“Load File...” selection at the bottom of the menu allows you to load any standard Mac

RGB graphics file (.tif, .psd, etc.) into the frame buffer for display.

Note: The graphic file will not be scaled to fit. If it's smaller than the current frame buffer format, KONA LHe will center it in the frame. If it's larger than the current frame buffer format, it will be cropped on the right and bottom. Also some graphics formats and bit depths may not be supported. Once a graphic file is loaded into the frame buffer it will be retained until it is overwritten by another graphic or test pattern, or when power is turned off. Graphic file names are only “remembered” in the menu as long as the AJA Control

Panel application is running.

AJA Control Panel, Test Pattern Choices

Hold Last Application: this selection directs LHe to hold and output the last frame of video from the last application to control LHe. This can be helpful when operating in an environment where you're switching back and forth between multiple application windows.

Tip:

pressing and holding the Apple COMMAND key while clicking in the AJA Control

Panel—while in any software application (Final Cut, etc.)—causes control of the KONA to stay with that application, rather than shifting to the Control Panel. This works regardless of the setting of “Default Output.”

Genlock (Freerun, Ref In, Video In)—selects how KONA LHe will synchronize program video:

Freerun: In this mode, KONA LHe generates sync without an external reference source

Ref In: Directs KONA LHe to use the Ref Video source for sync (usually an analog black burst video signal)

Video In: Directs KONA LHe to use whichever video input source has been selected in the

Inputs tab window for sync.

Timing (Horiz and Vert)—these two pull-downs allow output timing adjustment with reference to the Ref Video source selected. The Horizontal reference can be adjusted by selecting a number of pixels (clocks) to offset. Vertical can be adjusted by specifying a number of lines to offset.