T
 

T Stop

A true f/stop as opposed to one derived mathematically. It is the actual light transmission of a lens as measured on an optical bench. (Camera)

Tail Leader

Leader used at the finish end of a strip of film. (Film Editing)

Take Down

Reducing the light on an object by means of nets, scrims, dimmers or wasting light. (Grip/Lighting)

Tally

A lamp which lights to indicate that the associated video source is in use. Typical locations of tally lamps are on the front of video cameras and in the crosspoint pushbuttons of video switchers.

Tally relay

A relay whose contacts close when an associated function is placed on-air. Tally relays are used in video switchers to provide the customer a way to light a camera tally lamp when the camera is placed on air at the switcher panel.

TBC

Time-base corrector

Telecine

A machine that transfers film to a video signal. This also generically refers to the process of film-to-tape transfers.

Teleconferencing

Electronically linked meeting, conducted among groups in separate geographic locations.

Temp Dub

A preliminary mixing of dialogue, music, and sound effects, usually so that a first cut may be viewed with all of these elements incorporated. (Post Production)

Tenner

A standard studio 10K lighting unit, as opposed to a baby 10 or a Big Eye, which are also 10K lighting units. (Lighting)

Term

Definition

Terminal block

An insulating base equipped with one more terminal connectors.

Terminal equipment

Equipment at an end of communication lines that send and/or receive certain signals for specific services. Some examples in television include sync pulse generators, processing amplifiers, and distribution amplifiers.

Test point

Typically a post in a circuit that can be monitored to test a parameter of the circuit.

Test signal

An electronic signal with standard characteristics used to test the capability of circuits.

Test signal generator

Device that generates special television signals used for aligning television equipment.

Text paper:

Grades of uncoated paper with textured surfaces.

The second scene to appear in a dissolve or wipe effect.

THX

A theatrical film exhibition sound system which maintains a consistent sound standard from theatre to theatre. Generally, this system uses Dolby Stereo Surround as the basis of the exhibition standard, although a number of other systems have also now qualified. (Sound)

Tie In

A power feed obtained by temporarily clipping on to the main service of a location. This methodology is illegal in many areas. (Lighting)

TIFF

Tagged Image File Format (TIFF) is a standard encoding structure for image files.

Time Base Signal

A signal recorded on the edge of film in a camera to match a signal recorded on a magnetic recording which is used as a fast means of synchronizing film and sound workprints.

Time Code

Also known as Longitudinal Time Code. A high frequency signal that allows the accurate "locking" of film audio and video equipment.

Time code

Timing code laid down on videotape to give each frame a unique number so as to ensure exact transitions during editing.

Time delay

The time required for a signal to travel through a circuit.

Time-base corrector

Device used to correct for time base errors and stabilize the timing of the video output from a tape machine.

Timing

The process of selecting the printing values for color and density of successive scenes in a complete film in order to produce a desired visual effect. (Laboratory)

Tints:

A shade of a single color or combined colors.

Tissue overlay:

Usually a thin transparent paper placed over artwork for protection uses for marking color breaks and other printer instructions.

Title

The DVD Video data element within a title set (VTS) that contains a logical group of program material. Also used to describe the entire DVD production. See also program chain (PGC).

Title Key

A dedicated key on DVD remote controls that returns playback to the Top or main menu for the  disc. The action of this key is defined by the DVD author. See also Menu key, Return key, Video Title Set.

Title Menu

The menu in a DVD production designated as the Top or main menu for the disc. The Title menu is typically displayed when the disc first starts playing (sometimes after an introductory sequences), and contains navigational links to the contents of the entire disc. The viewer can access this menu at any time by pressing the Title key on the DVD remote control. See also First Play.

Tone

Typically refers to a single-frequency audio signal used as a level setting reference.

Top Menu

See Title menu.

Track

In DVD authoring, typically used to describe a single sequential piece of material, such as a video clip or slide show, in a DVD project that is then connected by navigational links. A track contains a main video stream plus additional streams, including alternate MultiAngle video, audio, and subtitle streams. A track also can act as a menu, with subpicture button highlights.

Trailer

A short publicity film which advertises a film or forthcoming presentations.

Transfer tape:

A peel and stick tape used in business forms.

Transistor

A semiconductor electronic device having three electrodes and used for signal buffering, amplification, etc.

Transparency:

A positive photographic slide on film allowing light to pass through.

Transparent copy:

A film that light must pass through for it to be seen or reproduced.

Transparent ink:

A printing ink that does not conceal the color under it.

Trapping

When two colors print butting up to each other paper movement in the printing press between each of the colors being applied to the paper can mean fine gaps appearing, spoiling the effect. To overcome this, colors are very slightly overlapped or 'trapped'. The method of trapping can differ depending on the software being used. This can vary from basically expanding the darker color to overlap the lighter color, to more complex methods where overlaps are created at pixel level to obtain a much smoother and less noticeable effect.

Trapping:

The ability to print one ink over the other.

Traveling Matte

A process shot in which foreground action is superimposed on a separately photographed background by an optical printer. (Laboratory)

Traycard

printed material placed in the back of a CD jewel case; includes labeling for the jewel case spine.

Trim marks:

Similar to crop or register marks. These marks show where to trim the printed sheet.

Trim size:

The final size of one printed image after the last trim is made.

Trims

Portions of a scene left over after the selected section has been used in final cutting.

TV Safe

The area of a filmed image which will normally appear on a home television set after a film has been transferred in a telecine and then transmitted.

Twisted pair

A cable composed of two small insulated conductor twisted together. Since both wires have nearly equal exposure to any interference, the differential noise is slight.

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