ABSTRACT

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.

chapter 1|8 pages

Acoustic Sound

part 2|2 pages

From Acoustic Sound to Electrical Signals

chapter 3|8 pages

Digital Representation

chapter 4|14 pages

Signal Types

chapter 5|6 pages

How Large Is an Audio Signal?

chapter 6|8 pages

The dB Concept

chapter 7|10 pages

The Ear, Hearing, and Level Perception

chapter 8|4 pages

Time Weighting

chapter 9|13 pages

Frequency Weighting and Filters

chapter 10|8 pages

Determination of Loudness

chapter 11|4 pages

Characteristics of Level Meters

chapter 12|4 pages

The Standard Volume Indicator (VU Meter)

chapter 13|4 pages

Peak Program Meter e PPM

chapter 14|12 pages

Loudness Metering

chapter 15|4 pages

Calibration of Level Meters

chapter 16|5 pages

Relationships Between Scales

chapter 17|4 pages

Dynamic Scales

chapter 18|7 pages

Polarity and Phase Reading

chapter 19|5 pages

Display of Level Distribution

chapter 20|16 pages

Multi-Channel and Surround Sound

chapter 21|12 pages

Standards and Practices

chapter 22|6 pages

Summation of Audio Signals

chapter 23|11 pages

Digital Interface

chapter 24|11 pages

Where to Connect a Meter

chapter 25|7 pages

Fast Fourier Transformation

chapter 26|4 pages

Spectrum Analyzer

chapter 27|8 pages

Other Measurement Systems

part 28|2 pages

Measurement Signals

chapter 29|3 pages

Sound Level Meters

chapter 30|5 pages

NR and NC Curves

chapter 31|17 pages

Room Acoustics Measures