Tyco 579-769 User Manuals

Table of Contents

• Front Cover

  1
• Copyrights and Trademarks

  3
• Table of Contents

  5
• Related Publications

  8
• Speech Intelligibility Overview

  9
• Background Information

  11
  • Basic Audio Math

    12
  • Sound and Hearing

    14
  • The Nature of Speech

    15
  • Room Acoustics

    16
  • Speaker Basics

    19
    • Inverse Square Law

      19
    • Sensitivity

      20
    • Dispersion Angle

      20
    • Coverage

      22
    • Determining Critical Polar Angle

      23
    • Power Rating

      25
    • Speaker layouts

      25
  • Distributed Wall Mounted Systems

    26
• Speech Intelligibility

  29
  • Influences on Intelligibility

    30
  • Measures of Intelligibility

    34
  • Practical Measurement of Intelligibility

    36
  • Tools for Predicting Intelligibility

    37
• Emergency Voice/Alarm Communications Systems

  39
  • Typical System

    40
  • System Parts

    41
• Regulatory Issues

  43
  • Audibility

    44
  • Intelligibility

    46
• Speaker System Design Method

  49
  • Applying the Methods

    52
  • Office Space Example

    52
  • Corridor Example

    54
  • Gymnasium Example

    56
  • Lobby Example

    58
  • Speaker Design Method

    50
  • Recommendations

    51
• Conclusion

  61
• Glossary of Terms

  64
• Index

  67
• Back Cover

  70