Patent ID: 7844062

Claim:
A method for synchronizing a signal tone output by a plurality of hearing aids in a binaural hearing aid coverage, comprising: providing a first counter, which is counted up or down, in a first hearing aid of a first ear; providing a second counter, which is counted up or down, in a second hearing aid of a second ear; transmitting a synchronization signal, which includes a counter reading of the first counter, from the first hearing aid to the second hearing aid; setting the second counter to the counter reading of the first counter according to the synchronization signal by considering a synchronization signal transit time between the two hearing aids; transmitting a control signal from the first hearing aid to the second hearing aid, such that the control signal includes a count value or such that the count value is predetermined and the control signal is transmitted before the count value; and emitting the signal tone from the first and second hearing aid when the respective counter reaches the count value.