The AI-81 audio processor for sound reinforcement and interactive audio features a professional-grade audioprocessing chip with a quad-core 1.5GHz processor. It integrates industry-leading audio pre-processing algorithms,including automatic feedback cancellation (AFC), automatic noise suppression (ANS), automatic echo cancellation(AEC), automatic gain control (AGC), reverberation reduction (ARR), steady-state noise suppression, transientnoise suppression, and beamforming, effectively enhancing the quality of voice amplification and interactive audio.

Widely used in educational settings for classroom sound reinforcement, it allows teachers to deliver lectures withoutrelying on wireless handheld microphones or fixed gooseneck mics, completely freeing their hands for naturalmovement around the podium. It is also suitable for speaker amplification in conference rooms. With multiplefunctional modes, it supports flexible deployment across various scenarios, including local sound reinforcement andremote interactive applications.

	Function	Specification
Arithmetic	Support algorithm	AFC、ANS、AEC、AGC、ARR
	Acoustic Feedback Gain	≦18dB
	Noise Reduction Depth	≦30dB
	Echo Cancellation Depth	≦90dB
	Echo Cancellation Tail Length	≦1s
	Reverb Suppression	≦18dB
	Maximum Gain	≦30dB
Hardware Specifications	Sampling Rat	48k
	Frequency Response	100Hz～20kHz，±0.5dB
	Total Harmonic Distortion (THD)	≦0.1%
Other specifications	Operating Voltage	DC12V
	Dimensions (L x W x H)	270x163x52(mm)
	Operating Temperature	-10℃~50℃
	Storage Temperature	-20℃~70℃
	Color	Black
	Weight