Here's the first book to address trade-offs between transmission impairments from the view of their effects on quality. Quality Measures and the Design first describes historical measurements, then explains the parameters, limits, theoretical calculations, and testing methods in current use. For telecommunication managers, designers, and students, this text describes: the basic operation of a telephone, domestic and international models for quantifying user assessment of quality, the characteristics and purpose of the five loudness measures used in telephony, and the nature of transmission parameters and their measurement. You'll also learn what measures are used in subjective testing, how the Grade of Service model relates measures of transmission impairment to the user's perception of quality, and how to apply the theory presented to the design of a general purpose telephone.
Foreword.Preface. Transmission Parameters. Measures of Loudness. Definitions. Computing Loudness Ratings. Measures of Quality. Voice Terminals. Networks. Applications. Glossary.