Discussion of the fundamental concepts of HVAC acoustics as it applies to buildings and HVAC systems.
Topics include:
- Sound waves and frequency
- Broadband sound and tones
- Octave bands and one-third octave bands
- Sound power and sound pressure
- Decibels and loudness
- A-weighting
- Noise Criteria (NC) and Room Criteria (RC)
- Sones and phons
- Acoustical analysis procedure
- Source-path-receiver model
- Computerized analysis tools
- Attenuation and regeneration
- Sound transmission
- Sound absorption
- Sound reflection
- Room effect
- Equipment sound rating
- Free field
- Reverberent field
- Semireverberent field
- Industry rating standards
- Reverberent room method
- ARI Standard 260
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