Method and apparatus for testing hearing ability
AssigneeEberhard Karls University Tübingen
InventorsErnst Dalhoff, Dennis Zelle
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Abstract
The present invention concerns a method for the detection of distortion products of otoacoustic emissions (DPOAE), comprising the steps: (a) output of at least one first pair of primary tones each consisting of a first primary tone with frequency f1,1 and sound pressure level L1,1 and a second primary tone with frequency f2,1 and sound pressure level L2,1 with f2,1>f1,1, and (b) detecting evoked distortion products of otoacoustic emissions (DPOAE), characterized in that the first primary tone {f1,1, L1,1} is output with a time delay tlag after the second primary tone {f2,1, L2,1}.
Claims26
A method for detecting distortion products of otoacoustic emissions (DPOAE) in a hearing organ comprising the steps of:
- (a) output of a first primary tone pair {f1,1, L1,1, f2,1, L2,1} each comprising a first primary tone with frequency f1,1 and sound pressure level L1,1 and a second primary tone with frequency f2,1 and sound pressure level L2,1 with f2,1>f1,1, and
- (b) detection of evoked distortion products of otoacoustic emissions (DPOAE),
- characterized in that the first primary tone {f1,1, L1,1} is output with a time delay tlag after the second primary tone {f2,1, L2,1}.
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Dependencies are inferred from the claim text.