Video

Video

Industry: Entertainment

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adaptive emphasis

Entertainment; Video

An ATV technique for improving detail of dark parts of the picture by increasing their level. If a complementary de-emphasis is performed at the receiver, noise can be reduced. Dolby B noise ...

adaptive spectral perceptual entrophy coding (ASPEC)

Entertainment; Video

An algorithm developed by Fraunhofer Institut, AT&T, Thomas Brandt, and the CNET. The ASPEC algorithm was later used for developing the MPEG audio Layer 3 specification.

2:1

Entertainment; Video

Either an aspect ratio twice as wide as it is high (18:9) or the field:frame ratio of interlaced scanning.

adaptive transform acoustic coding (ATRAC)

Entertainment; Video

An algorithm that splits an audio signal into three non-uniform sub-bands.

4:1:1

Entertainment; Video

4:1:1 indicates that Y' has been sampled at 13.5 MHz, while Cb and Cr were each sampled at 3.375 MHz. Thus, for every four samples of Y', there is one sample each of Cb and Cr.

adaptor

Entertainment; Video

A device that allows an ordinary NTSC television to receive pictures from a non-receiver-compatible ATV system.

A sampling system used to digitize the luminance and color difference components (Y, R-Y, B-Y) of a video signal. The four represents the 13.5 MHz sampling frequency of Y, while the R-Y and B-Y are ...