JVC KM-H2500U, KM-H3000U, KM-H3000E, KM-H2500E manual Dedicated Key Transitions, Chroma Key

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Dedicated Key Transitions

If an immediate transition is required or an unexpected transition needs to be performed, the switcher allows for a dedicated key transition. Dedicated key transition buttons for this purpose are located to the right of the Fader. Only dissolve transitions can be performed with the dedicated key transition buttons.

To perform a dedicated key transition:

1

1

 

1

 

2

1. Ensure that a key, key-type, and source are

selected.

3.Use the Key 1-3(1-2 on KM-H2500) knobs to change the transition rate for the specified key.

Note:

•If the transition rate is set to CUT and a transition is in progress, pressing a dedicated key transition button immediately cuts the associated key to the previous state (either on or off-air). The rest of the transition proceeds.

For More Information on...

•the Next Transition area behavior, refer to the section “Next Transition Key Behavior” on page 16.

Chroma Key

The Chroma Key masks a specified color allowing you to quickly extract a foreground subject from a controlled-color background. The switcher can mask the following colors: blue, green, red, cyan, magenta, and yellow. The default color is blue.

To create a Chroma Key:

2. Take the desired key on or off-air by performing

one of the following:

• Press KEY 1 TRANS to transition Key 1.

2 1

35

•

Press KEY

2 TRANS to transition Key 2.

•

Press KEY

3 TRANS to transition Key 3

 

(KM-H3000 only).

Note:

•When a key is on-air, the appropriate dedicated key transition button glows red.

For More Information on...

•selecting Keys, refer to the section “Selecting Keys” on page 19.

Setting the Transition Rate for Dedicated Key Transitions

You can set the transition rate for the dedicated key transition buttons independently of the other switcher transition rates.

To change the transition rate for dedicated key transitions:

3

2

1

1.Press DISS.

2.Press NEXT.

4

1.Select the key you wish to use.

2.If you are not using Key 1, press CHR KEY to set the selected Key to a Chroma Key.

3.If you have already assigned a Chroma Key to one of the other keyers and the Chroma Key share mode is set to FLOAT or ASK, you are asked whether you want to steal the Chroma Key resource to use on the new key. You can choose from the following:

•Press the Confrm knob to steal the Chroma Key resource for the new key. The old Chroma Key is taken off-air and converted to an Auto-Select Key.

•Press the Cancel knob to cancel the new Chroma Key and leave the resource with the key it is currently assigned to.

4.Select the desired source on the Key/Aux bus.

5.Use the Color knob to select the color to make transparent. You can choose from the following:

•Blue (default)

•Cyan

•Green

•Yellow

•Red

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Contents KM-H2500E/U KM-H3000E/U Important Regulatory and Safety Notices Safety Precautions Environmental Information Contents Introduction Advanced Operation Page Abbreviations About This ManualDocumentation Terms Control Panel OverviewControl Panel Rear Connections Overview To access a menu using the Menu buttonMenu System Knobs Installing Your Own Insert FilmsMenu Navigation ButtonsTransitions ShiftFader PositionerEuropean Video Formats Switcher Video FormatReference Type North American Video FormatsAssigning Fcfs Channels To assign an Fcfs channelFormat Conversions for Input Mode Format Conversions for Bus ModeTo set the output reference sync Setting the Output Reference SyncOutput Reference Sync Ancillary Data Resetting the Output Reference SyncAspect Ratio Default Alpha Channel Mappings Input BNC ConfigurationOutput Configuration To configure a Dhcp IP address for your switcher Clean FeedTo configure the Clean Feed output IP AddressCustomizing the Panel Glow Switcher PersonalityAux Bus Memory Recalls Loading Color Schemes Power-Save ModeSaving Color Schemes Resource Sharing Transition Rate UnitsDouble-Press Rate Editor Control Switch on Field or FrameNext Transition Area Reset Transition Resume DirectionTo set the Next Transition Key behavior Next Transition Key BehaviorTo set the transition resume direction To perform a transition Transition OverviewCutting on the Program Bus KEYWipe Transitions Configuring the Auto Trans RatePausing a Transition Keying OverviewSelecting Keys Video LayeringKey Transitions Performing Key TransitionsChroma Key Setting the Transition Rate for Dedicated Key TransitionsDedicated Key Transitions Mattes Using a MatteUsing other Adjustments Selecting a Matte ColorTo fade to black To apply other adjustmentsFade to Black Storing Memory Registers Using the Memory SystemChoosing a Memory Access Mode Recalling Memory RegistersMemory AI and Keys Bus HoldMemory AI and Recall to Preview Memory AI and Recall to Preview ExamplesRecall to Preview On To set the Recall to Preview modeTransition Limit Memory AITo Quickly Reset the Transition Limit Reset OptionsConfiguring Default Settings To configure user-defined defaultsResetting Individual Settings Restoring Default Settings to Factory StateResetting the Switcher Shared ParametersUSB Storage Resetting Menu ItemsRestoring to Factory Defaults Saving Memory Banks and RegistersPress Next until Run Software Upgrade From USB is displayed Software UpgradesTo upgrade the switcher software Loading Memory Banks and RegistersModifying Keys Completing a Software UpgradeAdvanced Keying Chroma Key Fine Tuning To modify the appearance of a Split Key Modifying Split KeysSplit Keys Aux Buses Accessing the Aux BusesModifying Wipes To modify time and directionTallies Selecting a Source for the Aux BusesSupported Editors General Purpose Interface GPIEditor Port Pin TriggerPage Transparency Media-Store OverviewFile Formats Loading an Image or Animation by BrowsingLoading an Image or Animation by Media Number Understanding Media NumbersEntering Media Numbers To lock or unlock place and bank valuesTo change an image between shaped and unshaped Modifying Media-Store Image AttributesTo modify the position of a Media-Store image Saving and Reverting Attributes Modifying Animation PlaybackAnimation Control To save attributes for an image To revert to saved attribute valuesPage Power Requirements DimensionsWeight HD-SDI Input and Output SpecificationsSwitcher Error Messages Error MessagesGVG100 Protocol Supported Commands GVG100 Supported CommandsLast 5 bits used bit 0 is GVG100 Supported Lamps GVG100 Supported Analog ControlsName MLE/Keyer Byte Code GVG100 Supported Buttons GVG100 Supported Buttons Page 多格式数字高清切换台

KM-H2500, KM-H2500U, KM-H3000U, KM-H2500E, KM-H3000E specifications

The JVC KM-H3000E, KM-H2500E, KM-H3000U, KM-H2500U, and KM-H2500 are professional video production switchers designed to meet the demands of live broadcasting, events, and production environments. These switchers are renowned for their robust construction, intuitive operation, and advanced features that cater to a wide range of workflow requirements.

The KM-H3000E and KM-H3000U are high-end models, offering extensive capabilities for complex productions. Both units feature a 1 M/E switcher configuration, enabling seamless switching between multiple video sources. The KM-H3000 series supports HD and SD formats, ensuring compatibility with various input signals. One of its significant characteristics includes a large-scale multi-viewer output, which provides operators with the ability to monitor multiple sources on a single screen, enhancing the efficiency of live production.

In terms of connectivity, the KM-H3000 series equipped with extensive I/O options, allowing for flexible integration with other broadcast equipment. It also supports external keyers, picture-in-picture effects, and advanced chroma keying, creating dynamic live content that captivates audiences. Additionally, the user interface is designed for quick and intuitive operation, featuring customizable buttons and clear labeling that streamline the switching process.

On the other hand, the KM-H2500E and KM-H2500U serve as mid-range alternatives, suitable for smaller operations without compromising functionality. These models maintain a compact design while still offering an impressive array of features. The KM-H2500 series includes 1 M/E switcher capabilities and supports multiple HD/SD formats, similar to its higher-end counterpart, but with slightly reduced input options.

One notable feature of the KM-H2500 is its cost-effectiveness, making it an attractive choice for educational institutions, small production houses, and local broadcasters. It supports simple transitions, effects, and basic keying, enabling users to produce quality content without the complexity of more advanced systems.

In summary, JVC's KM-H series offers versatile solutions for video production, whether it's high-end broadcasting or smaller-scale operations. With their robust feature sets, ease of use, and flexible connectivity, the KM-H3000E, KM-H2500E, KM-H3000U, KM-H2500U, and KM-H2500 are exceptional choices for any production environment. These switchers exemplify JVC's commitment to quality and innovation in the realm of professional video equipment.
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