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In this comprehensive guide Eddy Bogh Brixen will take you through the complex and confusing concept of audio metering, giving you the knowledge and skills you need to utilize optional signal levels and produce high quality audio. Covering all areas of this essential topic, Audio Metering begins with the basics- audio definitions and digital techniques, and works up to hearing and psychoacoustics. Levels in audio are defined, and the metering standards and practices are discussed, covering the existing standards abs VU and PPM, as well as the new loudness metering standards, making this the reference guide to audio metering. This new edition includes Current information on loudness metering, covering existing and new standards, defining terms like LU, RLB, and LKFS Explanations of music sounds and structures An extended chapter on topics relevant to the sound engineer in the field of psychoacoustics More details on speech intelligibility and it's measures The skills needed for both small room acoustics and large auditoriums sound design without losing sound quality An extended glossary Packed full of valuable information that can be applied to a wide variety of everyday tasks, this handbook is essential reading for all technicians and engineers working with acoustics, electro acoustics and audio forensics. It also provides essential information for anyone working with loudspeakers and large scale amplifiers, including sound design for theatrical and live audio set-ups.

Audio Metering: Measurements, Standards and Practice

Chapter 1: Acoustic SoundChapter 2: From Acoustics Sound to Electrical SignalsChapter 3: Digital representationChapter 4: Signal typesChapter 5: How Large is an Audio Signal?Chapter 6: The db conceptChapter 7: The ear, hearing, and level perceptionChapter 8: Time weighingChapter 9: Frequency weighting and filtersChapter 10: Determination of loudnessChapter 11: Characteristics of Level MetersChapter 12: The Standard Volume Indicator (VU Meter)Chapter 13: Peak program meter-PPMChapter 14: Loudness MeteringChapter 15: Calibration of Level MetersChapter 16: Relationships Between ScalesChapter 17: Dynamic ScalesChapter 18: Polarity and Phase ReadingChapter 19: Display of Level DistrubutionChapter 20: Multi-Channel and Surround SoundChapter 21: Standards and PracticesChapter 22: Summation of Audio SignalsChapter 23: Digital InterfaceChapter 24: Where to Connect a MeterChapter 25: Fast Fourier TransformationChapter 26: Spectrum AnalyzerChapter 27: Other Measurement SystemsChapter 28: Measurement SignalsChapter 29: Sound Level MetersChapter 30: NR and NC CurvesChapter 31: Room Acoustics Measures