Frequency-ripple spacing and emission delay time are inversely related

Evidence

A comparison of Fig. 3.31 and Fig. 3.32 indicates the previously mentioned relationship between the frequency differences of neighbouring extreme values, iJ.f, and the delay-time, td, given by iJ.f = l/td. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 376