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Hearing aid system and a method of operating thereof

  • US 10,639,474 B2
  • Filed: 05/11/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 05/12/2016
  • Status: Active Grant
First Claim
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1. A hearing aid system comprisinga speech processor adapted to be communicatively coupled to a microphone and adapted to process a microphone signal received at the speech processor for producing an electrical stimulation signal and an acoustic stimulation signal, the speech processor being further configured to generate a modified acoustic stimulation signal by modifying the acoustic stimulation signal at least for a part of a residual frequency range of a patient in dependence on effect of an implantable electrode array on mechanical properties of cochlea of the patient, wherein the speech processor is adapted togenerate the acoustic stimulation signal comprising a first gain corresponding to a first frequency comprised within the residual frequency range in accordance with an audiogram of the patient,modify at least one of the first gain and the first frequency to generate the modified acoustic stimulation signal,access a conversion model stored in a memory to generate the modified acoustic stimulation signal, the modified acoustic stimulation signal being configured to at least partially counter the effect of the implantable electrode array on mechanical properties of the cochlea of the patient, wherein the conversion model comprises a conversion function and the conversion function is based on a change in at least one of the first gain and the first frequency of the acoustic stimulation in a sample population other than the patient in response to at least one of characteristics of the implantable electrode array;

  • a first unit comprising a cochlear implant communicatively coupled to the speech processor, the cochlear implant comprising the implantable electrode array configured to be located within a cochlea of the patient and to provide an electrical stimulation based on the electrical stimulation signal to a cochlea within a non-residual frequency range of the patient; and

    a second unit communicatively coupled to the speech processor and adapted to provide a modified acoustic stimulation based on the modified acoustic stimulation signal to the cochlea within the at least in the part of the residual frequency range.

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