The VNF-4 from ETS is a four-channel voice band notch filter, interface. Four channel, low-cost background noise reduction module for use with ETS microphones and DVRs, etc. Provides boost of frequencies in the human voice band (1.7Khz) and10db per octave attenuation on both sides of the bandpass. The result is significantly reduced background noise and increased intelligibility of speech.
Check items to add to the cart or select all