| HUSHCORE™
Acoustical Products & Systems Technical Discussion |
Introduction Technical Discussion Product Data Section Summary Back Forward |
General
Information Terminology & Definitions Product Types Treatment Strategies Applications/Uses |
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What Are Octave Bands? Standardized octave bands are groups of frequencies named by the center frequency where the upper limit is always twice the lower limit of the range. Test data for performance of acoustical materials is standardized for easy comparison at the center frequencies. Equipment noise levels and measurement devices (dB meters) also follow the preferred octave bands. |
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| What
Are Octave Band Center Frequency Wavelengths At 70°F?
The speed of sound in air at 70°F is 1,130 feet per second. Wavelengths in feet for each center band frequency are listed below:
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