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Entries found for search: stereo

stereo spread: Most two-chann : Most two-channel stereo recordings are recorded and mixed to produce an impression of diffusion and spread of the sound between the loudspeakers, where the use of artificial pan and reverberation produces a pleasing, spacious sound. However, this is not the same as accurate, multichannel imaging.

stereo variable area : See SVA.

stereo X-Y pair : See X-Y pair.

stereophonic : From the Greek meaning "solid sound," referring to the construction of believable, solid, stable sound images. This has come to mean any sound system with two loudspeakers. However, it precisely refers to a sound system which provides the listener with an illusion of directional realism, regardless of how many channels are used. For example, the use of a reverberation effect with strong early reflections and a fairly fast decay are an effective way of creating a wide stereo spread from a mono source, such as a voice or instrument which has been recorded with a single microphone."

stereo optical print : There are two tracks on 35mm stereo optical prints, referred to as LtRt, on which are matrixed four channels of information. The 4:2 encoding is done during the print mastering, with the 2:4 decoding occurring at playback (at the theater). All of the stereo optical prints: Dolby Stereo (A-Type), Dolby-SR, DTS Stereo, and Ultra-Stereo occupy the same area as standard mono optical prints. The degree of mono compatibility is mix-dependent.

stereo link switch : A control on a dual-channel compressor or other effects device that sums the side-chain inputs together, then controls both channels from the same side-chain. This is to ensure that both channels of a stereo signal are subjected to exactly the same amount of gain reduction or other processing so as not to shift the stereo image.

stereo bar : A mounting for a pair of microphones on a single microphone stand.

stereoizing : Audio signal processing to turn a track recorded in mono into a realistic stereo field. In an analog world, stereoizing is accomplished by remixing the mono track with a copy of itself, and panning the output channels hard left and hard right, with slightly different EQ on each channel to widen the image. In a digital environment, it is typically accomplished by overdubbing the mono channel with a copy of itself, and running each channel through a reverb, each set with a slightly different delay. In the analog case, this results in only a slight improvement in spreading the stereo image; with DSP, it is possible to use complicated combination of reverb and other psychoacoustic effects to get a fairly realistic stereo image. See also double-tracking.

normal stereo See coincident pair.

Ultra-Stereo : See stereo optical print.

Dolby Stereo™ : The original Dolby Surround system which used four audio channels carried on a stereo optical track on 35mm film, using Dolby perceptual encoding. On 70mm film, six audio channels are recorded on discrete magnetic tracks laid onto the film. In the broadest and most common usage, the trademark that appears on movie prints, advertisements, and posters which means that a given film has been released in prints that employ Dolby A-Type noise reduction encoding. Beginning in 1987, Dolby-SR has been available on 35mm stereo optical prints. Dolby Stereo on 70mm usually means four discrete primary channels (LCRS) with the left-center and right-center tracks dedicated to low-frequency information (below 250 Hz). The four tracks are normally use A-Type encoding, although selected 70mm films, since 1987, have utilized Dolby-SR encoding. See film soundtrack.

DTS Stereo : See stereo optical print.



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