The patented feedback suppression algorithm u eliminates

 the feedback in the future, automatically adapts to the acoustic environment u up to 12 dB additional gain, effectively prevents feedback from occurring, u balanced line or microphone input, provides phantom power supply, and uses powerful signal processing technology combined with patent algorithm to suppress acoustic feedback. It uses echo cancellation and reflection elimination algorithm to effectively filter out the annoying reflected sound in the room. By adding masking noise (inaudible noise) to the output signal, or changing the frequency of the output signal by 5 Hz, the speckle feedback suppressor can detect the reflection component in the signal and remove it before the acoustic feedback appears, while keeping the initial signal intact. Basic function adaptive filters can be converted between "fast" mode and "precise" mode. Fast mode is suitable for situations where the microphone position changes frequently, such as in a conference system with multiple microphones and switching usage. The precise mode is suitable for situations where the microphone position is fixed, for example, the pulpit with stable acoustic environment. The adaptive filter can converge at a slower speed, thus effectively suppressing more reflection components. An additional gain of up to 12dB can be obtained before acoustic feedback occurs, depending on the acoustic environment and the mode of operation selected. The variegated feedback suppressor also has built-in automatic mixer for two microphone inputs. In many cases, such as on a podium, podium or conference table, using two microphones can better capture the voice of a moving speaker, which often increases the risk of acoustic feedback. In view of this problem, the automatic mixer in the variegated feedback suppressor will automatically reduce the gain of the microphone with weaker signal input and increase the gain of the other microphone with stronger signal input. In this way, it can track the speakers on the move and produce the best sound definition. At the same time, since the total gain remains constant, the maximum gain margin without acoustic feedback is maintained. The automatic mixer function works even if the feedback suppressor is disabled. Certification and accreditation safety to en 60065, immunity to en 55103-2 radiation to en 55103-1 regional certification European CE declaration of conformity installation / configuration lbb1968 / 00 Rear View accessories number package 1 lbb1968 / 00 bayonet feedback suppressor

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