Measurement of reverberation time using Time Delay Spectrometry (TDS)

Abstract

In the series of papers printed in the Journal of Audio Engineering Society in late sixties and early seventies, Richard C. Heyser introduced a revolutionary measurements technique which he named Time Delay Spectrometry (TDS) [1-6]. This technique allowed measurements to be conducted on systems that are inherently time-delaying, such as acoustic and electroacoustics systems, even non-linear ones, and being difficult to be maesured by means of traditional techniques, due to the time delay involved in the measurements.