The document discusses using wavelet time-frequency analysis to analyze transient evoked otoacoustic emissions (TEOAEs) in order to accurately estimate the relationship between TEOAE latency and cochlear frequency tuning. One-dimensional transmission line cochlear models predict that the TEOAE latency-frequency relation depends on whether or not scale-invariance holds in the cochlea. The latency of a given frequency component can be separated into parts, one of which depends on cochlear quality factor Q(f), allowing an objective estimate of cochlear tuning. Coherent reflection filtering theory relates the spontaneous otoacoustic emission (SOAE) minimum spacing to cochlear tuning as measured by Q