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Digital Audio Technology, 4th Edition

Book Description

An expert team from SONY Europe explains the technology behind today's major digital audio consumer products, including the Compact Disc, MiniDisc, Super Audio CD, DVD-Audio, MP3 and Digital Audio Tape.

Beginning with a fascinating overview of the history of audio technology, this fourth edition addresses the principles and technologies which underpin the various formats currently available. Considerable technical detail is provided, with extensive use of illustrations to enhance understanding.

Audio engineers, students and hi-fi enthusiasts who want to gain an understanding of the way these technologies have been developed will find no better introduction than this authoritative guide from SONY, a forerunner in the digital audio industry.

Table of Contents

  1. Cover Page
  2. Title Page
  3. Copyright Page
  4. Contents
  5. Preface
  6. A short history of audio technology
  7. Part One: Principles of Digital Signal Processing
    1. 1 Introduction
    2. 2 Principles of sampling
      1. The Nyquist theorem
      2. Sampling frequency
      3. Sample-hold circuits
      4. Aperture control
      5. Characteristics and terminology of sample-hold circuits
    3. 3 Principles of quantization
      1. Quantization error
      2. Calculation of theoretical signal-to-noise ratio
      3. Masking of quantization noise 51 Conversion codes
    4. 4 Overview of A/D conversion systems
      1. Linear (or uniform) quantization
      2. Companding systems
      3. Floating-point conversion
      4. Block floating-point conversion
      5. Differential PCM and delta modulation
      6. Super bit mapping (SBM)
      7. Direct stream digital (DSD)
    5. 5 Operation of A/D–D/A converters
      1. A/D converters
      2. High-density linear A/D converter
      3. D/A conversion in digital audio equipment
    6. 6 Codes for digital magnetic recording
      1. Non-return to zero (NRZ)
      2. Bi-phase
      3. Modified frequency modulation (MFM)
      4. Three-position modulation (3PM)
      5. High-density modulation-1 (HDM-1)
      6. Eight-to-fourteen modulation (EFM)
      7. EFM+
    7. 7 Principles of error correction
      1. Types of code errors
      2. Error compensation
      3. Error detection
      4. Error correction
      5. Error concealment
      6. Interleaving
  8. Part Two: The Compact Disc
    1. 8 Overview of the compact disc medium
      1. Main parameters
      2. Optical discs
      3. Recording and read-out system on a CD
      4. Signal parameters
      5. Audio signal
      6. Additional information on the CD
      7. Compact disc production
    2. 9 Compact disc encoding
      1. CIRC encoding
      2. The control word
      3. The Q subcode and its usage
      4. EFM encoding
      5. The sync word
      6. Final bit rate
    3. 10 Opto-electronics and the optical block
      1. The optical spectrum
      2. Interaction of optical waves with matter
      3. Optical components
      4. The injection laser diode (ILD)
      5. TOP: T-type optical pick-up
      6. FOP: flat-type optical pick-up
    4. 11 The servo circuits in CD players
      1. Summary of the servo circuits in a CD player
      2. The focus servo circuit
      3. The tracking servo circuit
      4. The sled servo motor
      5. The disc motor servo circuit
      6. Digital servo
    5. 12 Signal processing
      1. RF amplification
      2. Signal decoding
      3. D/A converter
      4. High-accuracy D/A conversion
  9. Part Three: Digital Audio Recording Systems
    1. 13 Outline
    2. 14 Video PCM formats
      1. Video 8 PCM format
      2. A/D–D/A conversion
      3. Description of the format
      4. DV-PCM format
    3. 15 Digital audio tape (DAT) format
      1. R-DAT
      2. Automatic track following
      3. Error correction
      4. Subcode
      5. Tape duplication
      6. Cassette
    4. 16 Non-tracking digital audio tape (NT-DAT)
      1. NT playback
      2. Double density scan
      3. NT read-out
      4. NT stamp-size DAT
    5. 17 MiniDisc
      1. The rainbow book
      2. Block diagram
      3. Physical format
      4. Physical track layout
      5. Recording on MD
      6. Read-out of the disc
      7. The MiniDisc optical block unit
      8. The Wollaston principle
      9. The detector block
      10. Psychoacoustics
      11. ATRAC
      12. Data format
      13. Anti-shock operation
  10. Part Four: Advanced Digital Audio Technologies
    1. 18 Super Audio CD (SACD)
      1. Introduction
      2. Technical specifications and dimensions
      3. Disc types
      4. Watermarking
      5. Encoding and sector format
      6. Disc structure
      7. Direct stream transfer
      8. Conclusion
    2. 19 DVD-Audio
      1. Introduction
      2. Basic concept
      3. DVD versus CD
      4. Compression
      5. Disc structure
      6. Optical read-out system
      7. Options
    3. 20 Audio compression
      1. Introduction
      2. MPEG
      3. Compression for other applications
      4. Multi-channel compression
  11. Appendix 1: Error correction
  12. Appendix 2: Sampling theorem
  13. Appendix 3: Serial copy management system (SCMS)
  14. Appendix 4: Digital audio interface format (S/PDIF-IEC958)
  15. Index