Professional Education Audio Portfolio Program

plan description:

1. Lavalier microphone: carry it with you and collect the teacher's voice

2. Omnidirectional microphone: The ceiling of the classroom collects the voice of the students.

3. If there is a voice coming from the teacher, local sound reinforcement + remote interaction can be performed, and the omnidirectional microphone is temporarily closed.

The cleverness of this solution is that it saves complex equipment such as audio processors, power amplifiers, and effects, which effectively reduces the success of the overall solution. On the premise of improving the quality and effect, the project cost is greatly reduced.

Instructions for use:

Connect PC:

1. Insert one end of the USB cable/network cable into the USB/RJ45 interface of the omnidirectional microphone, and insert the other port into the USB interface of the PC port.

2. After the PC is powered on, the omnidirectional microphone host will display the boot animation, and then the green LED will be on.

3. Turn on the power of the gooseneck/handheld/lavalier microphone, and the LED light of the omnidirectional microphone will turn blue and bright.

Program description:

The smart education solution adopts wireless lavalier/head-mounted/gooseneck/handheld microphone + smart array omnidirectional microphone as the core audio processing solution.

 1. Wireless wireless lavalier/head-mounted microphone The speaker's left and right wearable microphones can obtain the speaker's high-fidelity audio signal, and then transmit it to the smart microphone array terminal. The smart microphone array terminal can transmit the audio signal to the video conference terminal/computer terminal, and can also amplify the signal through the local speaker to realize local sound reinforcement.

2. The 4-array microphones of the smart microphone array terminal are mainly responsible for the acquisition of large-area far-field sound signals, such as the audio signal acquisition of the student terminal in the classroom (70 square meters). The collected signals can be uploaded to the video conference terminal/computer terminal independently. It can be mixed with the audio and audio of the wireless portable microphone and then uploaded to the video conference terminal/computer terminal.

3. The remote signal is transmitted to the smart microphone array terminal through the video conference terminal/computer terminal, and then played out through the speaker. The smart microphone array terminal has advanced audio algorithm technology to ensure smooth multi-party calls. Note: Beamforming, full-duplex echo cancellation, dynamic noise suppression, automatic gain control and other advanced voice processing algorithm technology.