FrontMatter -- Preface -- Contents -- Executive Summary -- 1 Introduction -- 2 Basics of Sound, the Ear, and Hearing -- 3 Assessment of the Auditory System and Its Functions -- 4 Testing Adult Hearing: Conclusions and Recommendations -- 5 Sensory Aids, Devices, and Prostheses -- 6 Impact of Hearing Loss on Daily Life and the Workplace -- 7 Hearing Loss in Children -- References -- Appendixes -- Appendix A Definitions and Technical Terms -- Appendix B American National Standards on Acoustics -- Appendix C Public Forum Participation -- Appendix D Biographical Sketches of Committee Members and Staff -- Index.