In 1982 the fruits of a partnership between Sony and Philips were released to the music-loving public the compact disk or CD was unveiled as the first consumer digital audio format.
These 12 centimeter discs could store up to 74 minutes of perfect quality digital audio and as was famously demonstrated many times over, which're immune from liquid damage could withstand significant scratching and could be played without wearing them down for a theoretically infinite number of times.
That's because unlike all previous sound, That's where the sound is encoded as an analog impression of the sound wave on plastic discs or Magnetic Tape the sound on a CD is encoded as a series of samples which function as a set of instructions on how to recreate the sound.
The compact disc was a big freaking deal in many ways. It represented a giant leap inconvenience for the consumer quality of the recorded sound and in raw data storage capacity that last bit wouldn't be too relevant to the Computing industry for some time, but it's solved the Central problem of digital sound needing time for absurdly massive amount of raw Data,
before we get too far into the specifics of the compact disc. It's time to dig a little deeper into how digital sound actually works for call . That an analog to digital converter is taken instantaneous samples of the analog signal at a specific sampling frequency. Then a digital to analog converter can recreate the original analog signal with only those samples. Well, a lot of people thought that this can't possibly work.
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