Recently, at the “Audio New Product Launch Conference†organized by Suzhou Industrial Technology Research Institute of East China University of Science and Technology and Suzhou Qingyin Acoustics Technology Co., Ltd., the first domestic directional speaker, Juyinbao Speaker, was officially unveiled. The speaker has a directional propagation angle of 5 degrees, which is a fan-shaped straight line propagation. Like a flashlight, the sound propagates in a fan-shaped interval, and the sound is not affected by sound interference outside the interval.
"The principle of the directional speaker is to modulate the sound into the ultrasonic frequency band, and use the directivity characteristics of the ultrasonic to realize the point-oriented propagation. For example, in exhibitions and exhibition halls, different sound sources can be transmitted without interference, and the environmental effects of sounds in public places can be realized. Dr. Zheng Zheng, the technical leader of Gusu Innovation and Entrepreneurship, and the Director of Qingyin Acoustics Co., Ltd., told reporters that in addition to the directional function, people can enjoy the lossless sound quality without being restricted by distance, and can directly push the music on the mobile phone. To the directional speakers, such as the square dance, as long as the dancers are arranged in a fan-shaped team, the speakers will sound louder and no one else in the square can hear them.
Suzhou Qingyue Acoustics Technology Co., Ltd. is located in Suzhou Science and Technology City. On the same day, “East China Institute of Technology Suzhou Industrial Research Suzhou Qingyue Acoustics Technology Co., Ltd. Institute of Acoustic Technology Research Center†was officially unveiled. The Qingyue Acoustics R&D team said that they will rely on the research center to further accumulate acoustic digital signal processing doctoral and acoustic experts, and continue to work hard to create innovative developments in the field of acoustic environment in China. Statistics show that up to now, the Qingyue Acoustics R&D team has applied for 15 related patents, of which 13 have been authorized.
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