Patent ID: 9078073
Filing Date: 2015-07-07
Classification: H04R

Abstract:
1. A method for setting a frequency-dependent gain in a hearing aid, said hearing aid comprising: a sensor element configured to be arranged at a body of a hearing-impaired user and to capture ambient sound, a signal processor configured to amplify said captured ambient sound with said frequency-dependent gain such that said amplified captured sound is audible to the hearing-impaired user, said signal processor being further configured for automatic re-adjusting of the frequency-dependent gain, a transmission element for outputting said amplified captured ambient sound, a data memory, and an energy store, said automatic re-adjusting of said frequency-dependent gain comprising the following steps: selecting a tone at a specific frequency; outputting the tone and, if existent, said amplified captured ambient sound during ordinary operation mode of said hearing aid via said transmission element to produce an output sound; capturing an analysis sound, which comprises said ambient sound, if existent, and a reflection of said output sound, by means of the sensor element; extracting a reflection of the supplied tone from the captured analysis sound; determining a reflection component for the specific frequency of the tone; and adjusting the gain in a frequency-specific manner on the basis of the so-determined reflection component.