Abstract
AbstractThe method of measurement of reverberation time by tracing decay curves is tedious though accurate. Occasions frequently arise when the need for a quick determination of reverberation time vs. frequency curve is felt. An equipment constructed in the Research Department, All India Radio, which can plot the reverberation time vs. frequency curve of an enclosure under test, in a relatively short time, is described. The time taken for 40 db decay is measured and is taken as two-thirds the value of reverberation time, assuming an exponential decay of sound energy. The value of reverberation time thus obtained is indicated on a calibrated meter and also plotted on waxed paper as a straight line whose length is proportional to the value of reverberation time. A number of such lines is obtained automatically at close intervals, each line representing the value of reverberation time a frequency slightly higher than the frequency corresponding to the previous line. Since all these lines have the same zero a...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
