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Digital Audio Recording Formats

Digital Audio Recording Formats

7 Digital Audio Recording Formats

Solid State

  • IC introduced 1959 by TI
  • transistors etched on silicon wafer
  • used for computer memory storage
  • 33 minutes at 128 Kbps
  • 32MB of rewritable built-in flash memory
  • used in Diamond Rio

Compact Disc

  • introduced 1980 by Philips/Sony
  • 5-inch optical disk recorded by laser
  • 44.1 kHz, 16-bit linear PCM
  • 650 MB for 74 mins.
  • used in Sony CDP-101

Digital Audio Tape

  • introduced 1986 by Philips/Sony
  • 3-inch cassette with tape 4mm wide
  • 48, 44.1, 32 kHz, 16-bit linear PCM
  • 90 minute tape at cost of $6
  • used in Sony TCD-D3

Helical Scan

  • introduced 1991 by Alesis
  • S-VHS videocassette
  • 44.1, 16-bit linear PCM
  • 8 tracks each 100 microns wide
  • used in Alesis ADAT

MiniDisc

  • introduced 1992 by Sony
  • 2.5-inch magneto-optical disk
  • 44.1 kHz, ATRAC lossy compression 5:1
  • 160 MB for 74 mins.
  • used in Sony MiniDisc

DVD-Audio

  • introduced 1999 by Panasonic
  • 5-inch optical disk recorded by laser
  • 24-bit linear PCM sampling at 192 kHz
  • 17 GB for 240 mins. 6 channels
  • used in DVD-A10

Super Audio Disc

  • introduced 1999 by Sony/Philips
  • 5-inch optical disk recorded by laser
  • DSD sampling at 2.8224 MHz (non-PCM)
  • 9 GB for 74 mins. 2 channels
  • used in Sony SCD-1

Digital Revolution | Digital Radio | Digital Television | DVD
- 1999 by Steven E. Schoenherr. All rights reserved.

Return to Recording Technology History Notes | this page revised Dec. 15, 1999
 
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