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A Sound Engineers Guide to Audio Test and Measurement

Book Description

This book offers a quick guide and complete reference to the fundamentals of test and measurement for all aspects of sound engineering.
Including electrical and acoustic testing, measurement systems, levels, methods, protecting the ear, units of measurement and standards, this guide comes with and multiple tables to ensure quick easy access to information and illustrate points this is a must have reference for all audio engineers.

Table of Contents

  1. Front Cover
  2. Half Title
  3. Title Page
  4. Copyright
  5. Contents
  6. Section 1 Test and Measurement
    1. Pat Brown
    2. 1.1 Test and Measurement
      1. 1.1.1 Why Test?
    3. 1.2 Electrical Testing
    4. 1.3 Acoustical Testing
      1. 1.3.1 Sound Level Measurements
        1. 1.3.1.1 Conclusion
      2. 1.3.2 Detailed Sound Measurements
        1. 1.3.2.1 Sound Persistence in Enclosed Spaces
        2. 1.3.2.2 Amplitude versus Time
        3. 1.3.2.3 The Transfer Function
      3. 1.3.3 Measurement Systems
        1. 1.3.3.1 Alternate Perspectives
      4. 1.3.4 Testing Methods
        1. 1.3.4.1 Fft Measurements
        2. 1.3.4.2 Dual-Channel Fft
        3. 1.3.4.3 Maximum-Length Sequence
        4. 1.3.4.4 Time-Delay Spectrometry (Tds)
      5. 1.3.5 Preparation
        1. 1.3.5.1 Dissecting the Impulse Response
        2. 1.3.5.2 The Envelope-Time Curve
        3. 1.3.5.3 A Global Look
        4. 1.3.5.4 Time Window Length
        5. 1.3.5.5 Acoustic Wavelengths
        6. 1.3.5.6 Microphone Placement
        7. 1.3.5.7 Estimate the Critical Distance Dc
        8. 1.3.5.8 Common Factors to All Measurement Systems
        9. 1.3.5.9 Data Windows
        10. 1.3.5.10 A Methodical Approach
      6. 1.3.6 Human Perception
        1. 1.3.6.1 Percentage Articulation Loss of Consonants ($$$Alcons)
        2. 1.3.6.2 Speech Transmission Index (STI)
      7. 1.3.7 Polarity
        1. 1.3.7.1 The Battery Test
        2. 1.3.7.2 Polarity Testers
        3. 1.3.7.3 Impulse Response Tests
    5. 1.4 Conclusion
    6. References
    7. Bibliography
  7. Section 2 What’s the ear For? How to Protect it
    1. Les Blomberg and Noland Lewis
    2. 2.1 What’s the Ear For?
      1. 2.1.1 What Does Hearing Damage Sound Like?
    3. 2.2 How Loud Is Too Loud? Osha, Niosh, Epa, Who
    4. 2.3 Indicators of Hearing Damage
    5. 2.4 Protecting Your Hearing
      1. 2.4.1 Protecting Concert-Goers and Other Listeners
      2. 2.4.2 Protecting the Community
    6. 2.5 Too Much of a Good Thing
      1. 2.5.1 A Compliance and Enforcement Tool
        1. 2.5.1.1. The SLARM Solution™
        2. 2.5.1.2. SLARMSoft™ Software Suite
        3. 2.5.1.3. SLARM™ Operation
    7. 2.6 Summary
  8. Section 3 Fundamentals and Units of Measurement
    1. Glen Ballou
    2. 3.1 Units of Measurement
      1. 3.1.1 SI System
      2. 3.1.2 Fundamental Quantities
      3. 3.1.3 Derived Quantities
      4. 3.1.4 Definition of the Quantities
    3. 3.2 Radio Frequency Spectrum
    4. 3.3 Decibel (dB)
    5. 3.4 Sound Pressure Level
    6. 3.5 Sound System Quantities and Design Formulas
    7. 3.6 ISO Numbers
    8. 3.7 Greek Alphabet
    9. 3.8 Audio Standards
    10. 3.9 Audio Frequency Range
    11. 3.10 Common Conversion Factors
    12. 3.11 Technical Abbreviations
    13. 3.12 Surface Area and Volume Equations
  9. Bibliography
  10. Index