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  • Spectra Tech Ltd: Room Reverberation Time (RT60) Onsite Field Testing Services, ASTM E2235, ISO 3382, Richard Lemker, Nationwide, Ohio, Indiana, Kentucky, Cincinnati, Dayton, Columbus, Springfield, Bowling Green, Knoxville, Portsmouth, Louisville, Lexington, Indianapolis, Frankfort, Lima, Bloomington, Huntington, WVA, OH, IN, KY

    Spectra Tech employes sophisticated equipment and software to measure and document the Room Reverberation Time (RT60), considered to be a universal descriptor of sound intensity. We can also provide assistance in designing solutions to reduce excessive reverberation times.

    • The RT60 reverberation test measures the time required for a sound to decrease in intensity from it's original maximum level by 60 decibels. The test is normally utilizes a wide spectrum impulse (e.g., gunshot, ballon pop, etc.) or a broad spectrum amplified noise signal that is abruptly turned off, to create the test signal. Our computer-based logging system records the decay in sound level in each of the 1/3 octave bands simultaneously, and assigns a preliminary value to the slope of each frequency plot. we are able to fine-tune the results and adjust the final slope of each frequency line, and determine the RT60 value for each 1/3 octave frequency band.
    • Plot / Print Test Results: We can provide documentation of test results by plotting / printing the test values on paper, and / or provide the reslts in PDF format.

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