Reverberation time measuring methods

Kristian Jambrosic, Marko Horvat, Hrvoje Domitrovic
2008 Journal of the Acoustical Society of America  
Acoustics 08 Paris In this paper different well-established methods of reverberation time measurement are compared. Furthermore, the results obtained using these methods are compared to the results provided by some additional methods which could serve as an in situ tool if, for any reason, the reverberation time measurements cannot be carried out using the standardized methods. The methods compared in this paper include the standardized methods (EN ISO 3382:2000), namely the impulse response
more » ... impulse response measured with pink noise, exponential sweep, MLS, but also pistol shots of different calibers, balloon bursts, gated external pink noise, and the B&K filtered burst method. In order to make the comparison, the measurements were performed in four acoustically very different spaces -a rather small and well-damped listening room, a much bigger damped drama theatre, a rather reverberant atrium, and a large and very reverberant shoebox-shaped room. The results were evaluated taking into account to signal-tonoise ratio criterion and special attention has been given to the influence of room modes on measurement results.
doi:10.1121/1.2934829 fatcat:ulfn2m5kv5d3ra4nidlioy47su