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• To conﬁgure paging, set Paging A Sensitivity to zero

then set Paging A Volume for Zone 1 (Z1) to about the

midpoint (attach an emitter to Zone 1 so you can hear the

test pages).

• Next, have someone speak continuously into the pag-

ing system. Increase Paging A Sensitivity until their voice

becomes audible and continue until it distorts.

• Then, turn Paging A Sensitivity down by one or two.

• Finally, have someone speak continuously into the paging

system and adjust Paging A Volume for all zones. You

should have a person in each zone to judge sound quality.

• If you do not wish to connect paging to a zone, set that

zone’s paging (A and/or B) volume to Mute.

• Repeat for Paging B Sensitivity and Paging B Volumes.

Music Volume Adjustment

• If music is to be supported, adjust music sensitivity. A mu-

sic source often has its own volume control. The Installer

must adjust the music source’s volume and the Qt PRO™’s

Music Sensitivity and Music Volumes for all zones, until the

desired balance is obtained.

• If you do not wish to connect music to a zone, set that

zone’s music volume to Mute.

Volume Ramping

Volume ramping is a technique recommended for

introducing sound masking into an occupied work-

place. Ramping ensures that workers who are aware

of the installation of a new sound system are gradually

introduced to its beneﬁts.

Before you begin ramping, conﬁgure your system’s

sound levels for permanent operation. Record the

permanent masking volumes on the Settings Record

Worksheet on page 16.

Once complete:

• If you are managing Qt PRO™ from a browser, click

the Auto Ramping radio button on the Operations

page corresponding to -10 dBA. The system will

automatically increase volume levels by 2 dBA each

night until target level is achieved.

Paging Sensitivity Key

0 1 2 3 4 5 6 7 8 9 10

–

0 dB

–

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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CAMBRIDGE QT Specifiche Pagina 10

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