AM404 multifunctional digital feedback suppressor

Product Overview:
This is an audio bridge that combines video audio and local conference audio solutions, using the industry's low-power high-speed floating-point DSP processor. It achieves high precision and wide dynamic range through the 64 bit accuracy of the floating-point DSP core.
Main function description:
AEQ - Automatic Sound Field Calibration Function: Equipped with a built-in sound field spectrum analyzer, it can automatically calibrate the spectrum defects of the sound field. Multiple calibration results can be saved and memorized in the device until the ear obtains satisfactory sound field effects. AEQ has transformed the complex procedures of traditional professional and technical requirements for sound field debugging into unusually simple and easy, completely bidding farewell to the constraints of spectrum analyzers and the troubles of room equalizer debugging.
AEC Adaptive Full Duplex Full Frequency Echo Cancellation Function: Built in adaptive full duplex full frequency echo cancellation technology, high-speed floating-point DSP processing method, reduces the system's data processing workload, improves the efficiency of echo cancellation processing, achieves full duplex of sessions, enhances communication audio frequency response, improves communication quality, achieves full frequency response echo cancellation, and realizes high-definition audio experience for video conferences.
AFC adaptive real-time acoustic feedback elimination function: the third-generation acoustic feedback processing technology improves the system's sound transmission gain, ensures the conference sound reinforcement effect, realizes the zero feedback effect of the conference sound reinforcement microphone within the equipment gain control range, and effectively improves the system's sound transmission gain by 6~12dB. Especially when the hidden multi interface microphone is turned on, it can better reflect the progressiveness of technology.
ANC automatic environmental noise filtering function: Built in adaptive dynamic noise filter, which can filter out background noise without affecting the speaker's voice. ANC can be used to reduce noise levels such as system background noise, on-site air conditioning fan noise, projector noise, and even environmental noise from roads near windows, ensuring clear and pure on-site and recorded sound, reducing interference from environmental noise sources and system background noise, and achieving high-definition conference audio effects. The noise filtering ability can reach 15dB with almost no distortion. AGC Automatic Gain Control Function: Implementing bidirectional intelligent level control technology, it has the ability to distinguish between voice and noise, enhance signals and soft signals, automatically adjust the gain of microphone level, and achieve good microphone gain level output.
Technical Specifications:
System: Frequency response (+/-0.2dB): 20Hz-20000Hz;
Maximum electromotive force gain: 46dB;
Signal to noise ratio: 102dB;
Total harmonic distortion (standard measurement conditions of 20-20kHz): 0.003%, @ 1kHz measurement: 0.007%;
Size: (440 mm) W x (180 mm) L x (45 mm) H
Net weight: 2.4kg