SOAE Bouncing occurs in open-ear listening to real-world low-frequency sound sources.

Evidence

Both ears of 45 young, normal-hearing subjects were screened for SOAEs. 33 subjects showed at least one SOAE in one ear. Overall we could record in the open meatus about 52 % of those SOAEs detectable in a sound-attenuated room and a closed-ear recording technique. The remaining 48 % were not significantly above the much higher noise floor of the free-field, open-meatus measurement. … Indeed many of those 48 % SOAEs that had been initially identified in the closed-meatus measurements, but could no longer be detected in the open meatus, appeared directly after the LF exposure for a short time period, before falling again below the noise floor (Fig. 3d ). These data clearly show that Bouncing of SOAEs can indeed be elicited by free-field exposure to LF sound sources of natural or anthropogenic origin. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3711

Categorization

Category: Factual Claims

Related

• Low-frequency Bounce occurs even with the ear canal left open (similarity 0.92)
• Real-world low-frequency noise can trigger the Bounce (similarity 0.92)
• Free-field low-frequency sound causes SOAE bouncing without ear canal occlusion (similarity 0.90)
• Free-field low-frequency sound from natural or man-made sources elicits SOAE bouncing (similarity 0.89)
• Low-frequency sound can awaken silent inner ears to emit spontaneous tones (similarity 0.87)
• Low-frequency exposure temporarily activates new otoacoustic emissions that were previously absent in most ears. (similarity 0.87)
• Low-frequency stimulation can make previously undetectable spontaneous emissions emerge transiently (similarity 0.85)
• Healthy ears continuously emit faint spontaneous sounds linked to frequency sensitivity (similarity 0.84)
• SOAE bouncing occurs in an open meatus, not only in a sealed ear canal (similarity 0.83)
• SOAE bouncing is not caused by middle-ear impedance changes (similarity 0.83)
• Low-frequency stimulation can reveal latent otoacoustic emissions invisible before exposure (similarity 0.83)
• Low-frequency sound exposure triggers long-lasting damped oscillations in spontaneous otoacoustic emissions. (similarity 0.83)
• SOAE bouncing is not caused by the probe blocking the ear canal (similarity 0.82)
• Most human ears display synchronized spontaneous otoacoustic emissions when driven (similarity 0.81)
• Intense low-frequency sound alters inner ear function even though we barely hear it (similarity 0.81)

Broader Connections

• Low-frequency sound can awaken silent inner ears to emit spontaneous tones #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3703
• Healthy ears continuously emit faint spontaneous sounds linked to frequency sensitivity #expands (0.75) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 778