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Lexicon
Surround
The Programs:
Surround
Treble
Mono Logic
Program
Parameters
Effect Level
The term Dolby Stereo refers to both movies and equipment used exclusively for theatrical
presentation. When one of these movies is transferred to commercial video media, the special
audio encoding of the Dolby Motion Picture matrix is retained in the two-channel stereo
soundtrack. The resulting video software and the hardware designed to reproduce it use the
name Dolby Surround to distinguish it from the theatrical optical format.
Dolby Pro Logic Surround decoding is the licensed consumer version of the professional
Dolby Stereo cinema processors, which allows the home viewer to obtain all the spatial
effects of the soundtrack heard in a theatre over a wider range of seating positions than
conventional Dolby Surround playback.
The SURROUND programs are designed for film sound tracks and they
make full use of additional loudspeakers at the center, sides and rear of the
room. MONO LOGIC takes a monaural soundtrack and sends music and
sound effects to the sides and rear through a room simulator program, while
keeping dialog in the center. STEREO LOGIC is meant for playing music
through a system whose speakers are laid out primarily for films. PRO
LOGIC is Lexicon’s all-digital implementation of the Dolby Pro Logic
Surround decoding process.
2.3 kHz
NA
NA
329 Hz - 14.1 kHz
NA
NA
Parameter Initial Value Range
TREBLE
SET PROGRAM NAME
MEMORIZE PROGRAM
TREBLE is the only adjustable parameter in MONO LOGIC. It regulates the
treble cut in the side and rear channels. The optimal setting for this
parameter will vary widely with the age, quality and condition of the
source material.
EFFECT LEVEL conrols the level of all channels except the center. The center
will appear stronger if you turn down EFFECT LEVEL a few dB. With
EFFECT LEVEL all the way down, the center only will play.
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