Request Information

Voice-Masking Generator

Voice-Masking Generator


The VMG is a portable direct-field Sound Masking System (SMS) designed for a variety of speech-masking applications. It is battery- or dc-operated with pre-programmed masking audio and a 4 W amplifier.

Part Numbers

VMG-MIX-INTVoice Masking Generator, Mixed voice and Pink Noise, Internal Speaker
VMG-VOICE-INTVoice Masking Generator, Voice Only, Internal Speaker
VMG-MIX-HEVoice Masking Generator, Mixed voice and Pink Noise, External Speaker (Heavy Emitter)
VMG-VOICE-HEVoice Masking Generator, Voice Only, External Speaker (Heavy Emitter)


Output sound level96 dB max @ 4 ft
Audio frequency range100 Hz–8 kHz
PowerOne 9 V battery, or optional 12 V dc transformer (120/240 V ac)
Battery life12 hours at half power typ., 2 hours at full power
Size5.4 × 3.4 × 1.2 in
Weight12 oz (340 g)