Digital Telephone Voice Recording Interfaces
Analogue Audio/Telephone Recording Interfaces
Covert Audio/Video Security System
Audio System / Dealer Board Interface Analogue Telephone Signalling Converters

SECURE RECORDING MICROPHONE (CM1) INTERVIEW MICROPHONE ACL have developed the CM1 Interview Microphone with unique recording characteristics ideally suited for interview rooms. It requires NO additional equipment, as it will work straight into the front end of any communications recorder or structured cable system

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FEATURES


The conventional way to record a meeting or interview room was to use a desktop mic with a stand; this is of course ugly and obtrusive. The CM1 can be fixed to a wall or ceiling and is designed to be as innocuous as possible.

The response of the microphone has been tailored for conversation recording using sophisticated audio processing.
The microphone element is a max planar type with superior clarity and noise figure.
Integrated preamplifier with line driver (output Line Level).
Noise gating with adjustable threshold suppresses background noise and speech or music in pick up area.
Signal peak limiter to prevent overload of output stage and recorder.
Adjustable output gain.

SPECIFICATIONS

Nearfield (<1m distance) to whole room operation: will clearly pick up conversations in rooms of up to 50 cubic metres volume.
Switchable low frequency filter with180Hz / 240Hz / 300Hz centre frequencies removes or attenuates hum or rumble outside speech band.

Selectable analogue compression
1:1 no compression
2:1 mild compression
3:1 strong compression.

Balanced or unbalanced output
(Max +18dBu bal, +12dBu unbal).

Mild steel enclosure (RFI rejection)
80mm x 50mm x 20mm.
Weight 150g.
Fixing: screw slots or Velcro

Power 12V DC Regulated 25mA.
 
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