Physics of a Compact Disk
Compact discs are the most popular form of recorded musical entertainment. They have more memory than their vinyl predecessors as well as a smaller size. Compact discs are digitally recorded, unlike the analog-recorded tapes and LP records, so have a better sound quality. Because of the benefits of optically recorded compact discs, this form of musical technology has almost completely replaced vinyl records and cassette tapes. CD’s are played optically by a compact disk player. Laser light beams read the binary codes encoded on the disk during recording, and the code is interpreted as sound or silence. The more binary numbers there are that are read as sound, the greater the intensity of the sound. The sound is transferred to the compact disc player’s sound system and the music is amplified through the speakers. Compact discs are digitally recorded using an optical recording system. Music, or sound, is recorded in analog form through a microphone placed near each instrument. The original sound signal is continuous and varies in pitch, or frequency, and volume. The microphone change
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Some common words found in the essay are:
Disk Compact, CDs Compact, DVDs CD-ROM, compact disc, compact discs, sound quality, digital information, digitally recorded, Encyclopedia CD-ROM, Association Inc, American Library, lasers read, disc player, disc players, cassette tapes, analog sound, compact disc players, compact disc player, discs digitally recorded, compact discs digitally, tapes lp records,
Approximate Word count = 762
Approximate Pages = 3 (250 words per page double spaced)
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