Full Ear Hearing Aid Response
Application ID: 125831
This model demonstrates how to perform a hearing aid acoustic feedback response analysis, including both the in-ear hearing aid and the hearing aid cassette. The hearing aid modeled is a ReSound OMNIA™ device from GN Hearing A/S. The hearing aid is tested on a combined pinna and ear canal and calculates the sound pressure level at the eardrum and compares with measurements. The model also simulates the acoustic field outside the ear and includes the acoustic feedback to the two microphones located on the hearing aid cassette.
The model uses the Pressure Acoustics, Frequency Domain interface and models the loudspeaker with a Lumped Port, while the damping is modeled by Narrow Region Acoustics and Thermoviscous Boundary Layer Impedance in the domains and boundaries where it is appropriate.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
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