Oticon A/s

Maico Diagnostic Gmbh

Claus Elberling

Thomas Lunner

Claus Dyre Nielsen

Thomas Behrens

The invention relates to a method to design and generate frequency-specific electrical or acoustical stimuli for the recording of auditory steady-state responses, ASSR, from human individuals, where the stimuli are generated as a combination of a series of three or more spectral components (i.e. pure tones), each having a specified frequency, amplitude and phase and where the frequency difference between the successive pure tones in the series preferably is constant=f. The invention further relates to a device for detection of ASSR and to a software program for use in such device.

Method to design acoustic stimuli in the spectral domain for the recording of auditory steady-state responses (ASSR)

In the method according to the invention the communication device has a microphone and a signal path leading from the microphone to a speaker, where the signal path comprises a programmable signal processing unit. According to the method the user is given control in a training session over one or more signal processing parameters within the signal processing unit. In the training session the user listens to the sound of his or her own voice transmitted through the communication device, and adjusts the one or more signal processing parameters until he or she is satisfied with the sound quality of his/her own voice. The values of the signal processing parameters chosen by the user during the training session are stored in a storing means within the device, and the programmable signal processing automatically uses the stored parameter when detection means within the unit detects the users own voice.

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Hellerup, Denmark

Claus Elberling