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Bose Wave Radio/CD. A table radio is a small, self-contained radio receiver used as an entertainment device. Most such receivers are limited to radio functions, though some have compact disc or audio cassette players and clock radio functions built in; some models also include shortwave or satellite radio functionality.
Portable CD players are powered by batteries and they have a 1/8" headphone jack into which the user plugs a pair of headphones. The first portable CD player released was the D-50 by Sony. [58] The D-50 was made available on the market in 1984, [59] and adopted for Sony's entire portable CD player line.
Some portable CD players can play CD-R/CD-RW discs and some can play other formats such as MP3-encoded audio. While audio typically is output via a headphone connector, higher-end models may feature an additional integrated speaker. The 8 cm CD provides a smaller alternative to the normal 12 cm CD (although with a lower capacity). Miniature ...
Sony Discman D-E307CK portable CD player with 1-bit DAC. Early CD players employed binary-weighted digital-to-analog converters (DAC), which contained individual electrical components for each bit of the DAC. [48] Even when using high-precision components, this approach was prone to decoding errors.
CD players are often a part of home stereo systems, car audio systems, and personal computers. They are also manufactured as portable devices. Modern units can play other formats in addition to PCM audio coding used in CDs, such as MP3, AAC and WMA. DJs often use players with an adjustable playback speed to alter the pitch and tempo
By August 1983 the company was able to produce a CD player which was one-tenth the size of the original, and a portable CD player became a possibility. [citation needed] The aim was to create a player that was the same size as four CD cases stacked on top of each other. A piece of wood 13.4 cm across and about 4 cm thick was shown to the staff ...
CD player Sony CDP-101 on display at the Museo della Scienza e della Tecnologia Leonardo da Vinci, Milan. Demonstration CD players from Sony had the disc placed vertically in the machine allowing the CD face to be visible through a transparent front whilst playing. The CDP-101 instead opted for a horizontal tray-loading system.
Sony Discman D-E307CK portable CD player with 1-bit DAC. Early CD players employed binary-weighted digital-to-analog converters (DAC), which contained individual electrical components for each bit of the DAC. [45] Even when using high-precision components, this approach was prone to decoding errors.
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