How It Works

How Speakers Work

In any sound system, ultimate quality depends on the speakers. The best recording, encoded on the most advanced storage device and played by a top-of-the-line deck and amplifier, will sound awful if the system is hooked up to poor speakers. A system’s speaker is the component that takes the electronic signal stored on things like […]

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How LCD Projectors Work

The technology behind the LCD projector is nearly three decades old in 2012, but it remains one of the top digital projection technologies, alongside Digital Light Processing (DLP) projectors. Inventor Gene Dolgoff developed the first LCD projector in 1984, and both Epson and Sony continue to employ the technology in 21st century projectors. The old

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How the reactable Works

Taking the two basic concepts of blocks and tables, four graduate students from the Univesitat Pompeu Fabra in Barcelona, Spain, added music to the mix and designed something called the reactable. The reactableis essentially a music synthesizer, and if you hear it played, it sounds similar to a lot of modern electronic dance music. The

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How Guitar Pedals Work

Almost since the birth of amplified guitars in the early 1930s, players looked for ways to enhance the sound of their electric guitars. A huge variety of guitar effects have emerged from their experiments. These include rack-mounted effects, effects built into amplifiers, and pedal effects. While rack-mounted and built-in effects are separate topics, this article

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