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Discman (Japanese: ディスクマン, Hepburn: Disukuman) was a brand name used by Sony for their portable CD players. The first Discman, the Sony D-50 or D-5 (depending on region), was launched in 1984.
An early portable player, a Sony Discman model D121 A Philips portable CD player disassembled The internal components of a Panasonic portable CD player This article relies largely or entirely on a single source .
Data Discman (Japanese: データ ディスクマン, Hepburn: Dēta Disikuman) is an electronic book player introduced to the Western market in late 1991 or early 1992 by Sony Corporation. [1] It was marketed in the United States to college students and international travelers, but had little success outside Japan.
An early portable player, a Sony Discman model D-121. A portable CD player is a portable audio player used to play compact discs. 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]
Audio quality may be slightly worsened due to compression artifacts when the system is in use. [citation needed] Quality is improved with uncompressed buffering.Battery life is shortened due to the fixed (CAV) read speed of the disc and power required by the memory.
From 1997, Sony's Discman range of portable compact disc (CD) players started to rebrand as CD Walkman. [46] In 2000, the Walkman brand (the entire range) was unified, and a new small icon, "W.", was made for the branding. [45] From 2012, Walkman was also the name of the music player software on Sony Xperia. It has since been rebranded to Music.
Various Sony Walkman products ranging from 1979 to 2016, on display at an expo in Tokyo. The following is a partial list of Sony Walkman products which includes products of various formats under the brand.
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.