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Calls and audio simulators. Schemes, articles, descriptions

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Calls and audio simulators

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Home cinema - from a to z. Part 1



Section Audio. A home theater is more than a kitchen radio, a TV or a video deuce, and sometimes more than a music center. This is no longer just a device with which you can watch a video, it is a multifunctional device that replaces all of the above and, coming into our lives, often occupies a fairly large, and sometimes a huge part of it: it becomes a place of rest for friends or for the whole family ... >>

Hybrid thyristor inverter, 180-230/12-24 volts 20 amps



Section Voltage converters, rectifiers, inverters. Inverters based on thyristor converters were previously developed to form a high voltage on a kinescope in TV sets of the domestic industry. Low conversion frequency, simple circuit, no high-voltage high-capacity oxide capacitors, etc. allow such circuits to be used with little change in power supplies. The availability of powerful high-voltage thyristors for sale makes it possible to develop a compact power supply with low energy losses. Such a source is suitable for powering radio equipment, energy-saving lamps, charging car batteries and powering DC electric motors. ... >>

Power features of white LEDs



Section LEDs. Let us consider in more detail the power supply features of white LEDs. As you know, the LED has a nonlinear current-voltage characteristic with a characteristic heel in the initial section (Fig. 4.21). As we can see, the LED starts to glow if a voltage of more than 2,7 V is applied to it. Attention! When the threshold voltage is exceeded (above 3 V), the current through the LED begins to grow rapidly and here it is required to limit the current, stabilize it at a certain level ... >>

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Articles on Calls and Audio Simulators

Articles on calls and audio simulators; call schemes and audio simulators; descriptions of calls and audio simulators: 79 articles

 


 

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Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

People with synesthesia are better at smelling 25.08.2017

Synesthesia is an unusual phenomenon in which a sensation received from one sense organ immediately causes a sensation in another. The most common type of synesthesia is letter-color synesthesia, in which the perception of letters is associated in a person with a sense of color. At the same time, olfactory-color synesthesia (the ratio of smells with flowers) is much less common - for example, only about 6% of people with synesthesia "see smells".

Researchers from the University of Nijmegen in the Netherlands conducted an experiment in which they asked six olfactory-color synesthetes and seventeen non-synesthetes to complete a battery of tests to determine their olfactory and color perception. The results showed that synesthetes were better at perceiving both colors and smells; it turned out that they were more consistent and accurate in naming the latter.

The scientists note that this is the first time that improved perception has been recorded in the modality that causes synesthesia and the modality where synesthesia is experienced.

"Journal of Experimental Psychology"

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