The circuits and wiring diagrams below have been tested on several hi-fi stereo systems with no damage to the systems. However, I cannot be responsible for some hair-brained engineer who may have used a radical design that might be damaged by an unorthodox speaker hookup. Use these circuits at your own risk. After reading many articles about surro
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und sound I have come to the conclusion that most of the writers haven`t done their homework. Some writers trace the origin of surround sound to the 1976 movie Star Wars. Others trace it to the abortive attempts at marketing quadraphonic (four-channel) stereo in the early 1970`s. Where did surround sound originate; what was the first surround sound movie So far, the earliest reference I have seen to what is now called surround sound was a documentary on the making of the 1940 Disney movie, Fantasia. The concept of encoding a third channel into a stereo signal is so simple that I`m sure it was thought of as soon as stereo sound was developed. What about Star Wars Star Wars was released in a six-channel stereo format which was already at least 15 years old in 1976. I suspect the truth is that, starting with Star Wars, surround sound became almost universally used for movie prints destined for theaters lacking the more expensive multichannel sound systems. Home theater surround sound is simply a by-product of these prints. There is no need to re-record the sound for home video. Once a movie is encoded with surround sound, it remains with the movie for the home video release. With standard stereo, the separate signals are sent to separate speakers, one to the right of the listener and one to the left. The sounds produced by the speakers may seem to come from one speaker or the other, or may seem to come from empty space...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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