Patent ID: 8571242

Claim:
A method for adapting sounds in a hearing aid device to the needs of an end-user of said hearing aid device by frequency modification, said frequency modification being defined by one or more frequency modification parameters being defined as follows: a frequency delta by which an entire or a partial spectrum is shifted, a linear compression factor, according to which a linear frequency modification is applied to an entire or partial spectrum, a logarithmic or perception based compression factor, according to which a logarithmic or perception based frequency modification is applied to an entire or partial spectrum, a lower spectral bound of a frequency range to which frequency modification is applied, an upper spectral bound of a frequency range to which frequency modification is applied, a number of frequency ranges to which frequency modification is applied, a mapping parameter being part of a frequency mapping function, which maps input frequencies to output frequencies, an amplification parameter indicative of an amplification of modified frequencies relative to an amplification of unmodified frequencies, an intermediate parameter, from which at least one of frequency delta, linear compression factor, logarithmic or perception based compression factor, lower spectral bound, upper spectral bound, number of frequency ranges, mapping parameter, amplification parameter are derived, the method comprising the steps of: adjusting said frequency modification in dependence on a result of a sound environment analysis and/or in dependence on an end-user input by adjusting at least one of said one or more frequency modification parameters characterized by further comprising the steps of: providing predefined frequency modification parameters for at least a first and a second typical sound environment (A, B) and/or for at least a first and a second state of an end-user controllable parameter, and automatically adjusting at least one of said one or more frequency modification parameters based on said predefined frequency modification parameters whenever said sound environment analysis indicates a change of a currently encountered sound environment and/or whenever a change of said end-user controllable parameter occurs.