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Related Experiment Videos

The reference ear modeling method for internally feedback controlled digital hearing aid chip.

Sunyoung Kim1, Seung Jin Lee, Namjun Cho

  • 1Korea Advanced Institute of Science and technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea. sunyoung@eeinfo.kaist.ac.kr

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|November 16, 2007
PubMed
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A novel reference ear modeling method enhances digital hearing aid performance. This acoustic filter-based approach simplifies programming and enables real-time gain adjustments for improved audibility.

Area of Science:

  • Electrical Engineering
  • Acoustics
  • Biomedical Engineering

Background:

  • Digital hearing aids require sophisticated ear modeling for effective sound processing.
  • Existing methods often face challenges in complexity and programmability.

Purpose of the Study:

  • To propose and implement a new reference ear modeling method for digital hearing aids.
  • To reduce modeling complexity and enhance programmability for real-time feedback control.

Main Methods:

  • Utilized acoustic filter theory for ear modeling.
  • Developed a fully internal gain fitting and verification system.
  • Compared responses from damaged and reference ears for gain parameter processing.

Main Results:

Related Experiment Videos

  • Successfully fabricated a digital hearing aid chip with the reference ear model.
  • The chip utilizes 0.18 microm CMOS technology with a core area of 3.1 mm x 1.2 mm.
  • Achieved low power consumption, dissipating less than 120 muA.

Conclusions:

  • The proposed reference ear modeling method is effective for digital hearing aids.
  • The implemented method enhances programmability and reduces complexity.
  • The fabricated chip demonstrates efficient performance and low power consumption.