Bose FreeSpace E-4 Specifications download pdf (Page 52)

52 of 80

6.0 E4 System Setup

Paging operation

When a page signal is triggered, the music signal is ramped

down according to the ducking time. The ducking time is preset

at 20 ms for Auto detection and 0 ms for PTT triggering. The

music level is reduced by the ducking depth which can be

adjusted using the ducking depth control. Ducking depth is

adjustable from 0 to –40 dB. Once a page is completed and the

Hold Time has elapsed, the music volume is ramped up accord-

ing to the ducking release time, which is adjustable from 0 to 5

seconds in 0.5-second increments.

Programmer’s Note: The attack time for a page is

approximately 1 millisecond for a PTT input and 20 milli-

seconds for a voice-activated input.

6.3.7 Zone EQ

The Zone EQ control panel provides a three-band equalizer for

adjusting the sound quality of the zone.

Click and drag each slider to the level you want. The scale on the

left side of the panel is expressed in dB.

Factory default settings

ZONE EQ operation

The center frequency and shape of each EQ band is fixed and

can be adjusted by ±6 dB.

• The low-frequency EQ (LF-EQ) is a low-pass shelf EQ with a

corner frequency of 125 Hz and a roll-off of 6 dB per octave.

• The mid-frequency EQ (MF-EQ) has a center frequency of

1.6 kHz and a Q of 1.

• The high-frequency EQ (HF-EQ) is a high-pass shelf EQ with a

corner frequency of 8 kHz and a roll-off of 6 dB per octave

below this point.

Music

signal

Ducking depth

0 to –40dB

Page

signal

Ducking Time:

Fixed at 20 ms for Auto Detection,

0 ms for PTT Detection.

Release Time

0 to 5 secs

Hold Time

0 to 5 secs

Low Mid Hi

0 dB 0 dB 0 dB

MF-EQ

LF-EQ

HF-EQ

∑

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 74 75

Comments to this Manuals

No comments

Bose FreeSpace E-4 Specifications Page 52

Comments to this Manuals

Related products and manuals for Mobile device dock stations Bose FreeSpace E-4