Patent ID: 7474758

Claim:
A method for setting a hearing aid system, comprising: providing a first hearing aid device and a second hearing aid device separate from said first hearing aid device; in each of said first and second hearing aid device, providing, in sequence, an input transducer, a signal processing unit, and an output transducer; in each of said first and second hearing aid device, receiving an acoustic input signal by the input transducer and converting the acoustic input signal into an electrical signal by the input transducer, and processing the electrical signal by the signal processing unit to produce a processed signal that compensates a hearing impairment and converting the processed electrical signal into an output signal by the output transducer; providing a signal path for data transmission between the first and second hearing aid devices; automatically measuring a signal transit time of the electrical signal in a signal path between the input transducer and the output transducer of the first hearing aid device; automatically transmitting a signal, via the signal path for data transmission from the first hearing aid device to the second hearing aid device, indicating the measured signal transit time; and from the measured signal transit time indicated in the transmitted signal, automatically, at said second hearing aid device, adapting a signal transit time of the electrical signal in a signal path between the input transducer and the output transducer of the second hearing aid device to match the measured signal transit time of the first hearing aid device.