Principles of Acoustics

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This course is designed as the introduction to acoustic measurements. The topics covered will focus on the understanding, measurement and description of sound and noise. It will include an explanation of acoustical terminology, means of assessing noise in typical applications including Sound Intensity, Sound Quality, Workplace Noise. Recommended for technicians and engineers as an introduction to product and environmental noise assessment.

Course Outline

INTRODUCTIONS
Course Outline and Objectives

BASIC ACOUSTIC PRINCIPLES

  • What is sound, noise?
  • Physical properties, parameters
  • Logarithms and decibel notation
  • RMS vs Peak measurement
  • SPL descriptors, Leq / SEL
  • Sound fields
  • Frequency-range, equal loudness, weighting functions
  • 1/1 Octave, 1/n octave, constant bandwidth analysis

MEASUREMENT INSTRUMENTATION

  • Microphone characteristics, application, accessories
  • Sound level meter / Noise dose meter design
  • SLM standards - ANSI S1.4, IEC 651/804
  • Frequency analyzers - Serial & Parallel methods
  • Calibration procedures
  • SPL measurement considerations
  • Care of the SLM

BASIC APPLICATION EXAMPLES

Workplace Noise

  • Noise dosimetry
  • Criterion, exchange rate, threshold factors, dose descriptors
  • Significance of “impact/impulse” noise exposure
  • Noise exposure procedure & measurement in practice
  • Employers and noise regulation
  • Noise control & hearing conservation program model

Community Noise

  • Outdoor microphones and weather considerations
  • Statistical descriptors, Ln
  • Level & Cumulative distribution
  • Special purpose indices, TNI, Ldn, Lepn,
  • Level recording & data logging methods
  • Noise by-laws and enforcement
  • Community noise measurement in practice
  • Computer Based Noise Modeling and Prediction

Architectural Acoustics

  • Measuring Building Acoustics Parameters, reverberation, transmission loss
  • Computer Modeling of Room Acoustics

Sound Quality, Sound Intensity & Noise Control

  • Measures\ of Sound Quality, loudness, tonality
  • Noise Producing Processes
  • The Source-Path-Receiver System
  • Noise Control Design
Course details
Location
Phoenix, AZ
Start time
09 Oct 2018 9:00
Registration deadline
25 Sep 2018
Duration
1 day
Type
Training course
Price
$295

Instructor(s)
Bruel & Kjaer
Language
English