SoundMasking for Speech Privacy
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AVLELEC SMG-2 Soundmasking Generator

AVLELEC SMG-2 Soundmasking Generator


Data Sheet

The SMG-2 sound masking generator produces an analog pink noise signal
that is fed to sound masking amplifiers (ordered separately) in order to
produce random low-level background noise to mask ambient noise and aid
conversational privacy.
The pre-EQ output has a flat spectrum that can be used as an input to
equalizers that feed power amplifiers for masking systems that require precise
The post-EQ output is adjusted by bass, mid and treble controls, and can be
used for less demanding applications that utilize basic spectrum shaping.
• Outputs:
– Pre-EQ hi-Z line level (~500mV)
– Post-EQ hi-Z line level (~500mV)
– Pink noise (equal energy per octave)
– Adjustable post-EQ
• Connections: RCA phono jacks
• Controls: Bass, mid, treble, and volume allow for basic noise spectrum
shaping without an external equalizer.
• Chassis: 12.2" x 1.5" x 6" steel chassis with black powder epoxy finish. (19"
x 1.75" x 6" with brackets set for rack mount use)
• Power Supply: UL Listed power supply (UL60950) with universal input
(100–240VAC) and 12VDC @ 1A output.
• Mounting Aids: Universal mounting brackets for rack, shelf, wall, or under
counter use.
• Origin: Made in the U.S.A. with global components

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