Audio Metering

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Taylor & Francis, Nov 12, 2012 - Technology & Engineering - 272 pages
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In this comprehensive guide Eddy Bøgh 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.

 

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Contents

A frequency of 1 Hz 1 cycle per second Afrequency of 1000 Hz
From Acoustic Sound to Electrical Signals 3 Music Acoustic Sound
where λ wavelength
Chapter four Signal Types 5 LargeIsan Audio Signal?
dB Concept EarHearing andLevel Perception 7 8 Time Weighting
Frequency Weighting and Filters 10 Determination of Loudness 11 Characteristics of LevelMeters
Program Meter PPM 14 Standard Volume Indicator VU Meter Loudness Metering 13 15 How The The The Peak
speed
MultiChannel andSurround Sound 21 Standards and Practices 22 Summation of Audio Signals
Digital Interface
Where toConnectaMeter
Fast Fourier Transformation
Spectrum Analyzer
Other Measurement Systems
Sound Level Meters
Glossary

RelationshipsBetween Scales
Dynamic Scales
Polarity and Phase Reading 19 Display of LevelDistribution

Other editions - View all

Common terms and phrases

About the author (2012)

Eddy Bøgh Brixen is an audio consultant and lecturer based in Denmark. His primary activities cover acoustics, electro acoustics and audio forensics. Eddy is a member of the AES, SMPTE, ACFEI and is recognized as a Diplomate of the American Board of Forensic Engineering. Formerly he has been affiliated with The Danish Broadcasting Corp., The Danish Acoustical Institute, DELTA, KKDK. Now he is running his own company EBB-consult. Eddy Bøgh Brixen is active in standardization work and has participated the working groups on loudness metering.

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