Feedback Suppressor works?.

The world, many manufacturers produce feedback suppressor, a United States Sabine, Japan, Roland, and Sony, Germany's Behringer. .Overall, it works the same. .Input signal amplification produced by the amplified analog signals into digital signals, detection devices constantly scanning, picking up the acoustic feedback signal, because the acoustic feedback signal and music signal different characteristics of acoustic feedback signal is the beginning, growing, .and then to maintain a certain level. .To find this signal, immediately inform the central processor digital signal processor to set the frequency, and digital filters to find the frequencies for digital attenuation. .The-40dB attenuation at about the bandwidth tunable filter from 1 / 60 octave to 1 / 5 octave. .Feedback Destroyer used properly, can gain sound reinforcement system to improve sound transmission 6dB ~ 12dB. .In the sound reinforcement system, the feedback suppressor is usually connected to the equalizer, the equalizer then only as a sound balance of compensation, and the feedback inhibition of suppressor for the howling. .In some cases, can also feedback suppressor on the microphone input channel. .At present, the commonly used acoustic feedback suppressor with Sabine's FBX-1802 (dual); Behringer's DSP-1100; Roland's AP-700; SONY's FR-300..