Lexicon CP-1 PLUS V2.0 Owner's Manual page 39

The Modes:
Movie Surround
Auto Azimuth/
Rear Delay
Rear Delay Settings
Rear Noise Chip
Side Speakers
Set Program Name/
Memorize Program
Page 34
The AUTO AZIMUTH/BAL (short for Auto Azimuth Error Correction/
Balance
Automatic Input Balance) parameter should be set to ON for films, OFF for
music. When it is on, special patented algorithms continually monitor the
input signal and adjust both the relative level and time offset of the two
channels to keep the dialog properly centered and special effects properly
localized. This automatic feature is why the CP-1 does not have or need an
input balance control for Dolby Surround decoding.
REAR DELAY in TV Matrix is adjustable. Generally, the correct delay is
about 20 milliseconds but the setting depends on speaker set-up and source
material. In general, the delay should not be so great that the rear sound
becomes identifiable as a distinct source.
Dolby Surround decoding specifications call for a special form of Dolby B-
type noise reduction for the rear (surround) channel. Since Dolby Surround
encoded material should generally be listened to in the ProLogic mode, this
parameter is normally OFF. It can, however, be turned ON if you wish to
experiment with this.
The SIDE SPEAKERS control turns the side speaker output on or off,
widening or reducing the apparent stereo spread.
The procedures for naming a new version of the program (SET PROGRAM
NAME) and storing it in one of the User registers (MEMORIZE PROGRAM)
are described on page 36.
40
35
30
25
20
15
10
5
0
0 5 10 15 20 25 30 35 40
Distance (in feet) From Front Speakers
Preferable Acceptable
Lexicon