Beating tone pairs can reveal cochlear compression dynamics at single BM sites

Evidence

Sound-evoked BM vibrations were recorded from the basal turn of the cochlea in terminally anesthetised gerbils, using techniques similar to those reported previously (Versteegh and van der Heijden 2012 ). Acoustic stimuli included: (i) inharmonic multi-tone complexes (zwuis stimuli), which were used to characterise the tuning properties of each site on the BM (including the site’s CF); and (ii) “beating” pairs of inharmonic near-CF tones, with component levels adjusted to produce near-perfect periodic-cancellations in the response envelopes at individual sites on the BM (cf. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3631

Categorization

• DEFINE: Introduces ‘zwuis stimuli’ and the periodic-cancellation beat-pair technique as measurement tools.