Patent ID: 8059847
Filing Date: 2011-11-15
Classification: H04R

Abstract:
1. A hearing aid for measurement of in-situ occlusion effect or directly transmitted sound, said hearing aid comprising: a first microphone adapted to generate a first input signal from sounds external to a user of the hearing aid; a signal processing means; a receiver; and a second microphone adapted to generate a second input signal from sounds in the occluded ear of the user; said signal processing means being adapted to generate a hearing loss compensated electric output signal from said first input signal, and said receiver being adapted to produce an acoustic output signal from said electric output signal; and said hearing aid being adapted to selectively enter a measurement mode, in which said mode receiver is silent and said signal processing means is adapted to produce at least one occlusion effect value or at least one directly transmitted sound value from the difference between simultaneously generated sound levels of the second and the first input signals.