Obtaining data on hearing capacity

US6123677A · kind A · utility

Assignees

• Juergen Heitmann · DE
• Bernd Waldmann · DE
• Peter K. Plinkert · DE
• Hans-Ulrich Schnitzler · DE
• Hans-Peter Zenner · DE

Inventors

• Juergen Heitmann · Schwanau, DE
• Bernd Waldmann · Jeffery Road, DE

Key dates

• Filing date: Nov 9, 1998
• Grant date: Sep 26, 2000
• Expiry date: Nov 9, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/12
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a process for obtaining data on hearing quality by measuring distortion products of otoacoustical emissions (DPOAE) in which two primary tones with the frequencies f.sub.1, and f.sub.2 >f.sub.1 and sound pressure levels L.sub.1 and L.sub.2 and at least one sound event having proportions of the frequency f.sub.3 and the sound pressure level L.sub.3 are applied as stimuli to the hearing organ and at least one distortion product of the defined frequency is determined, where the value of f.sub.3 is close to the frequency of the distortion product.