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4 audio – Honeywell RAPID EYE K9696V2 User Manual

Page 55

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4–1

4 Audio

4.1

Audio at a Multi-Media Site

Microphones

If security procedures call for viewing the person that is speaking, plan to place
microphones in camera range. However, microphones can be placed independently of
cameras; they have their own cabling. Microphones require amplification to provide line-
level input to a Multi-Media unit; see figure 37.

Fig. 37. Audio input to Multi-Media unit.

Selecting a microphone

Choosing a microphone type (condenser, canon, Lavaliere, and so on), pickup pattern
(cardioid, omni-directional, and so on), sensitivity, whether one needs phantom power,
and other considerations, are beyond the scope of these installation instructions. Unlike
camera domes, you can mix different models of microphone at a site. Please see your
microphone supplier.

Placing a microphone

Microphone placement requires experience with noise sources, sound absorption and
reflections; these topics are beyond the scope of these instructions. Please see your
microphone supplier. See also 4.1.1: Checking for Audio Interference, next.

Speakers

Connect powered speakers to a Multi-Media unit so that people at the site can hear an
operator. See figure 38.