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The iPod is a discontinued series of portable media players and multi-purpose mobile devices designed and marketed by Apple Inc. [2] [3] The first version was released on November 10, 2001, about 8+1⁄2 months after the Macintosh version of iTunes was released. Apple sold an estimated 450 million iPod products as of 2022.
The "Wave Radio" (which has since become known as "Wave Radio I") was an AM/FM clock radio that was introduced in 1993. It was smaller than the Acoustic Wave Music System and used two 2.5-inch speakers. [3] A "Wave Radio/CD" model was introduced in 1998 and was essentially a Wave Radio I with a CD player.
iPod. The iPod Classic (stylized and marketed as iPod classic and originally simply iPod) is a discontinued portable media player created and formerly marketed by Apple Inc. There were six generations of the iPod Classic, as well as a spin-off (the iPod Photo) that was later re-integrated into the main iPod line.
The following tables compare general and technical information for a variety of audio coding formats. For listening tests comparing the perceived audio quality of audio formats and codecs, see the article Codec listening test .
This headphone amp -- supporting sampling rates up to 48kHz, 24-bits of resolution and a 10-20kHz frequency -- cables into your iPod's 30-pin connector to bypass the digital audio converter and ...
An equal-loudness contour is a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. [1] The unit of measurement for loudness levels is the phon and is arrived at by reference to equal-loudness contours. By definition, two sine waves of differing ...
Each unit features an iPod Universal Dock connector, a built-in slot-loading CD, and FM radio all controllable by included remote. An LED display under the front cover shows input and track ...
The iPod Nano (stylized and marketed as iPod nano) is a discontinued portable media player designed and formerly marketed by Apple Inc. The first-generation model was introduced on September 7, 2005, as a replacement for the iPod Mini, [2] using flash memory for storage.