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Avid Compatibility

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5.28.2106

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Avid Compatibility

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Glossary

Glossary

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Action Cutting

The cutting of film from one shot to another in a way yielding the impression that action is continuous and uninterrupted.

 

Aspect Ratio

The proportion of picture width to height (1.33:1, 1.66:1, 1.85:1 or 2.35:1).

S

sample plot

The representation of audio as a sample waveform.

 

sample rate

The frequency of the sample units.

 

saturation

A measurement of chrominance. Saturation is the intensity of color in the video signal.

 

scale bar

A control in the Timeline window that allows you to expand and contract the Timeline area centered around the blue position indicator.

 

scroll bar

A rectangular bar located along the right side or the bottom of a window. Clicking or dragging in the scroll bar allows the user to move or scan through the file or window.

 

scrubbing

The process of shuttling through audio at various speeds as the audio pitch changes.

 

SECAM

Séquential Couleur à Memoire. A color television broadcast standard developed in France and several Eastern European countries.

 

segment

A section of a track or clip within a sequence in the Timeline that can be edited.

 

sequence

An edited composition that often includes audio and video clips and rendered effects connected by applied transitions. The Avid system contains a Timeline that graphically represents the edited sequence.

 

shot log

A listing of information about a roll of film or a reel of videotape, usually in chronological order.

 

shuttling

The viewing of footage at speeds greater than real time.

 

sifting

The displaying of clips that meet specific criteria in a bin.

 

silence

Blank (black) space in the audio tracks in a Timeline that contains no audio material.

 

SMPTE timecode

A frame-numbering system developed by the Society of Motion Picture and Television Engineers that is used primarily for electronic editing and timing of video programs. It assigns a number to each frame of video, telling the elapsed number of hours, minutes, seconds, and frames (for example, 01:42:13:26).

 

soft wipe

A wipe effect from one image to another that has a soft, diffused edge.

 

sorting

The arranging of clips in a bin column in numerical or alphabetical order, depending on the column the user selects.

 

source clip

One of the lowest-level building blocks of a sequence composition.

 

source mode

A method of assembly that determines in what order the edit controller reads the edit decision list (EDL) and assembles the final tape. There are five different types of source mode: A-mode, B-mode, C-mode, D-mode, and E-mode.

 

speed

The point at which videotape playback reaches a stable speed and there is enough preroll time for editing or capturing.

 

splice-in

An edit in which the material already on the video or audio track is lengthened by the addition of new material spliced in at any point in the sequence.

 

split

An edit in which the audio and video signals are given separate IN points or OUT points, so the edit takes place with one signal preceding the other. This does not affect audio and video synchronization. Also called an L-cut, delay edit, or overlap edit.

 

split-screen

The video special effect that displays two images separated by a horizontal or vertical wipe line.

 

stepping

The movement forward or backward one frame at a time. Also called jogging.

 

storyboard

A series of pictures (traditionally sketches) designed to show how a production will look. Comic books are essentially storyboards. Storyboards and subsequent sequences can be created by manipulating images from the captured footage in a bin.

 

streaming

A technology that allows users to watch a video clip or movie over the Internet while the video is being copied to their computers.

 

striped stock

Film stock to which a narrow stripe of magnetic recording material has been applied for the recording of a sound track.

 

subclip

1. An edited part of a clip. In a sequence, a subclip can be bound by any variation of clip beginnings, endings, and mark points. 2. Created by marking IN and OUT points in a clip and by saving the frames between the points. The subclip does not contain pointers to media files. The subclip references the master clip, which alone contains pointers to the media files.

 

synchronization

1. The pulses contained within a composite video signal to provide a synchronization reference for signal sampling. Also, a separate signal that can be fed to various pieces of equipment. 2. The sound recorded on a separate audiotape but synchronized with videotape or film shot simultaneously. Also called sync.

 

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track selector

A method of selecting one of the tracks from a track group; only the selected track is to be played. For example, a track selector can indicate which of four alternate views of the same scene is to be played.

 

tracking

The positioning of video heads during tape playback so that the heads reproduce the strongest possible signal. Tracking is adjusted on the deck prior to capturing.

 

transition

A representation of what is to take place as one segment ends and the next one begins. The simplest transition is a cut, which occurs in video when the first frame of the starting segment directly follows the last frame of the segment that is ending.

 

transition effect

A wipe, dissolve, or digital video effect (DVE) applied to an edit transition.

 

trim

The process of adjusting transitions in a sequence from the Timeline.

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uncompressed

video A captured video stream that is not processed by a data compression scheme. The video signal remains uncompressed at all stages of the process: input, storage, and output. Uncompressed video conforms to the ITU-R BT.601 standard.

 

undo/redo

The process that allows a return to the state immediately preceding the last edit or a repeat ofan “undo" edit.

 

up cut

In editing, to cut the end of the previous scene, often by mistake. In general, to cut short.

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UV meter

Volume unit meter. An instrument used to measure audio levels.

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VCR

Videocassette recorder. A video recorder that uses consumer-grade videotape formats such as VHS, Betamax, and Hi8.

 

vectorscope

A visual display that shows the electronic pattern of the color portion of the video signal. It is used to adjust the color saturation and hue by using a stable color reference such as color bars.

 

VHS Video Home System.

 The 4-inch videocassette format developed by JVC for consumer and industrial use.

 

video stream

 1. In analog editing systems, also called a video playback source. 2. In digital editing systems, a stream of data making up a digital video image.

 

VITC

Vertical interval timecode. The timecode inserted in the vertical blanking interval.

 

volume level

An objective measure of audio intensity.

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WAVE

RIFF Waveform Audio File Format. A widely used format for audio data. OMF Interchange includes it as a common interchange format for audio data.

 

waveform

1. In video, a visual display that shows the electronic pattern of the video signal. It is used to adjust the setup and gain by using a stable reference such as color bars. The Avid waveform uses a single-line display. 2. In audio, a visual representation of changing frequencies.

 

white point

The luminance value in a video image that you set equal to reference white when making a color adjustment.

 

wild sound

A recording of sound on either videotape or audiotape made without an accompanying picture. Also called a wild track.

Y

YUV.

The letter designations for luminance, luminance minus red, and luminance minus blue. YUV are the luminance and color difference signals of the component video standard for PAL. Also called YCrCb.

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