Abstract
This study investigates the cochlear origin of the multiple temporal lobes that are often observed in
the transient-evoked otoacoustic emission (TEOAE) envelope. This "waxing and waning" of the OAE
amplitude can be observed in tone-burst (TB) OAEs and sometimes also in click-evoked (CE) OAEs.
TBOAE envelopes were analyzed for several frequency and level configurations to investigate the
relation between the envelope periodicity and the characteristic frequency of the emission component.
It was found that the TBOAE envelope periodicity was dominated by the modulation caused by the
interaction of several CEOAE and SOAE frequency components close to the stimulus frequency.
A second and smaller TBOAE envelope component showed a qualitative agreement with envelope
periods predicted by a model based on multiple cochlear reflections. Multiple reflections between the
frequency components in the TBOAE and the middle-ear boundary may contribute to the TBOAE
envelope periodicity, but were not the main modulation component in waxing and waning of the
investigated TBOAEs.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of Forum Acusticum 2011 |
| Publication date | 2011 |
| Pages | 1235-1240 |
| ISBN (Electronic) | 978-84-694-1520-7 |
| Publication status | Published - 2011 |
| Event | Forum Acusticum 2011 - Aalborg, Denmark Duration: 26 Jun 2011 → 1 Jul 2011 http://www.fa2011.org/ |
Conference
| Conference | Forum Acusticum 2011 |
|---|---|
| Country/Territory | Denmark |
| City | Aalborg |
| Period | 26/06/2011 → 01/07/2011 |
| Internet address |