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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Classic snare drum simulator module. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Musician

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This module contains the generator part of the snare drum circuit. Spring sound simulator assembled in another module, along with a variable volume working drum, but receives a start impulse from this circuit.

Classic snare drum simulator module

Author: E. Shustikov (UO5OHX ex RO5OWG); Publication: shustikov.by.ru

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Random news from the Archive

New implant allows you to hear the light 21.07.2018

A group of German researchers have published a paper on a new type of cochlear implant that uses light to simulate sound.

For their study, German scientists began training Mongolian gerbils to jump over obstacles when they heard an alarm. The researchers then injected the gene directly into the cochlea, the inner ear of gerbils, using a virus. This genetic upgrade allowed light to activate neurons in the animal's cochlea. After that, they implanted an optical fiber that could turn on and give light right inside the ear.

When the scientists turned on the fibers, and they began to emit blue light, the rodents began to jump over obstacles as if they heard the sound of an alarm. When the researchers deafened some of the animals and turned on the fibers again, the gerbils were still jumping as if they "heard" the light, although they could no longer physically hear the sound.

Previous studies of this kind have been done in mice and rats, but gerbils have more human-like hearing and can hear the same range of sounds as humans. While this is just an experimental proof-of-concept for now, it could usher in a new era of hearing implants that could allow deaf people to hear another person's speech even in a crowded and noisy environment, as light is easier to limit than electric current and is softer. affects the inner ear, allowing you to capture even an analogue of quiet sounds.

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