This three-day course is intended for engineers and other technical personnel
and managers who have a work-related need to understand basic acoustics
concepts and how to measure and analyze sound. This is an introductory course
and participants need not have any prior knowledge of sound or vibration. Each
topic is illustrated by relevant applications, in-class demonstrations, and
worked-out numerical examples. Since the practical uses of acoustics principles
are vast and diverse, participants are encouraged to confer with the instructor
(before, during, and after the course) regarding any work-related concerns.
Dr. Alan D. Stuart, Associate Professor Emeritus of Acoustics, Penn State, has
over forty years experience in the field of sound and vibration. He has degrees in
mechanical engineering, electrical engineering, and engineering acoustics. For
over thirty years he has taught courses on the Fundamentals of Acoustics,
Structural Acoustics, Applied Acoustics, Noise Control Engineering, and Sonar
Engineering on both the graduate and undergraduate levels as well as at
government and industrial organizations throughout the country.
Contact this instructor (please mention course name in the subject line)
What You Will Learn:
- How to make proper sound level measurements.
- How to analyze and report acoustic data.
- The basis of decibels (dB) and the A-weighting scale.
- How intensity probes work and allow near-field sound measurements.
- How to measure radiated sound power and sound transmission loss.
- How to use third-octave bands and narrow-band spectrum analyzers.
- How the source-path-receiver approach is used in noise control engineering.
- How sound builds up in enclosures like vehicle interiors and rooms.
- How to monitor and control environmentally offending noise sources
- Introductory Concepts. Sound in fluids and solids. Sound as particle vibrations. Waveforms
and frequency. Sound energy and power consideration. Source-path-receiver model of noise
- Acoustic Waves in Air. Plane and spherical acoustic waves. Spreading loss and plane wave
equivalent. Sound pressure, intensity, and power. Decibel (dB) log power scale. Sound reflection
and transmission at surfaces. Sound barriers and sound absorptive treatments.
- Acoustic and Vibration Sensors. Human ear characteristics. Designs and response
characteristics of capacitor and electret microphones. Intensity probe design and operational
characteristics. Parabolic reflectors use to amplify, localize, and monitor outdoor noise sources.
Accelerometers design and frequency response. Non-contacting laser vibrometers.
- Sound Measurements. Sound level meters. Time weighting (fast, slow, linear). Decibel scales
(Linear and A-and C-weightings). Octave band analyzers. Narrow band spectrum analyzers.
Critical bands of human hearing. Detecting tones in noise. Microphone calibration techniques.
- Sound Radiators. Human speech mechanism. Loudspeaker design and response
characteristics. Directivity patterns of simple and multi-pole sources: monopole, dipole and
quadri-pole sources. Acoustic arrays and beamforming. Sound radiation from vibrating machines
and structures. Radiation efficiency. Techniques to control radiated noise.
- Low Frequency Air Handling Systems. Sound waves in ducts. Fan noise issues and
controls. Helmholtz resonators. Quarter-wavelength turners. Muffler designs and their operational
- In-Air Noise Control and Monitoring. Outdoor sound propagation (e.g. refraction due to
temperature and wind) including ground effects. Environmental acoustics (e.g. community noise
response, criteria and monitoring procedures). Auditorium and room acoustics (e.g. reverberation
criteria and sound absorption). Structural acoustics (e.g. sound transmission loss through single
and double panels). Noise control techniques to reduce air-borne and structure-borne sound.
Sound exposure level and other environmental noise standards. Topics of interest to the course
Tuition for this three-day course is $1740 per person at one of our scheduled public courses. Onsite pricing is available. Please call us at 410-956-8805 or send an email to ATI@ATIcourses.com.