The smartphone will sing two hundred times stronger
The smartphone will sing two hundred times stronger

The smartphone will sing two hundred times stronger

Смартфон запоет в двести раз сильнее (2 фото) Speakers of a new type were invented at the KAUST University of Science and Technology, located in Saudi Arabia. They can enhance the power of sound even from a modest source, such as a Bluetooth speaker or smartphone, up to two hundred times. Over the past three decades, audio media has changed significantly due to the confrontation between quality and convenience. Portable cassettes replaced vinyl with its warm sound. Further, the sound began to be completely digitized and recorded on CDs. Then we were asked to listen to compressed sound in various formats, starting with mp3, on small devices, such as smartphones. The sound of their speakers cuts the ears of a true music lover. However, for ordinary listeners, the difference is not only insignificant, and sometimes completely invisible. Portable Bluetooth speakers provide a more decent sound, but there is a purely physical problem: obtaining sonorous, voluminous bass is impossible without a decent membrane in the speakers. After all, the air must somehow oscillate. Смартфон запоет в двести раз сильнее (2 фото) Researchers from Saudi Arabia have radically turned this concept around with their development. They thought out and printed on a 3D printer a gadget made of ABS plastic for acoustic resonance with a diameter of ten centimeters. It is capable of enhancing the weak sound coming from the speaker of a mobile device two hundred times. Moreover, the device produces surprisingly voluminous bass for such a small speaker. Hidden in the form of spirals, the channels diverging from the center were hidden inside the device.This design, slowing down the sound, will allow resonance to develop at low frequencies, despite the modest diameter. In Wu, one of the developers, argues that the air resonance in the channels provides even greater conversion of the source’s electricity into sound. At the same time, the sound propagates in all directions evenly with this design. Sounding this technology does not spoil, only some wavelengths are amplified. The sound pressure index does not exceed 20 decibels, which means that there is no danger to health. So development can become the basis for smaller and lighter Bluetooth speakers. Their price will be lower, and energy for work will require less. As a result, sound quality and convenience will cease to be antagonists.

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