The Programs:

 

CP-1 Digital Audio Environment Processor

Reverb

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MID RT (Midrange Reverberation Time) is the time required for midrange

Mid RT

 

 

 

sounds to decay 60 dB in level. Your choice of small, medium or large

 

 

 

 

synthesized space determines both the initial value and the available range

 

 

 

 

of MID RT.

 

 

BASS RT, the low-frequency reverb time, depends on the MID RT and is

Bass RT

 

expressed as a multiplier. BASS RT is equal to MID RT in Program 7, while

 

 

in the medium and large versions of the program it is 25% higher (as is the

 

 

case in most actual halls with acceptably warm subjective frequency bal-

 

 

ance).

 

 

TREBLE rolloff, as in the Ambience programs, is preset to mimic air

Treble

 

absorption in actual spaces, being more pronounced in the larger ones.

 

 

 

 

PANORAMA EFFECT adjusts the strength of the signal used to expand the

Panorama Effect

 

 

 

stereo image outward from the front two speakers. Its initial value is zero,

 

 

 

 

unless you have configured the CP-1 for no side loudspeakers.

 

 

LISTENER POS compensates for the relative distances of the two speakers

Listener Position

 

from the prime listening area. It should be set for the value arrived at in the

 

 

Panorama set-up procedure on page 11.

 

 

 

SPEAKER ANGLE compensates for varying distance between your front

Speaker Angle

 

 

speakers. The Speaker Angle can be set to the value reached in the setup

 

 

 

procedure on page 11, but the program may also work well at lower values.

 

 

 

The image expansion is strongest at the one location in the room for which

 

 

 

the program has been calibrated. ( See page 11.) It will diminish somewhat

 

 

 

as you move forward or back from that location, and more rapidly as you

 

 

 

move from side to side.

 

 

 

 

PRE-DELAY increases the delay between the direct sound and the onset of

Pre-Delay

 

 

 

reverberation. Some pre-delay is inherent in the programs, and the preset

 

 

 

 

value of 0 is usually a good starting point. Increasing the pre-delay will

 

 

 

 

make the hall sound larger.

 

 

 

 

The procedures for naming a new version of the program (SET PROGRAM

Set Program Name/

 

 

 

NAME) and storing it in one of the User registers (MEMORIZE PROGRAM)

Memorize Program

 

 

 

are described on page 29.

 

 

Page 25

Page 29
Image 29
3Com CP-1 owner manual Mid RT, Bass RT, Treble, Pre-Delay, Set Program Name, Memorize Program