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US 2026/0238943 A1Published application
Microphone tuning method
AssigneeHarman Becker Gepkocsirendszer Gyarto Kft.
InventorsViktor DOBOS, Balazs VARGA, Zoltán Giang-Son KLEINHEINCZ
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Abstract
A method comprises determining a frequency response correction curve, wherein the frequency response correction curve corresponds to a difference between a first frequency response and a second frequency response, and applying the frequency response correction curve to a microphone output signal of a microphone element, thereby correcting a frequency response of the microphone element to a desired frequency response.
Claims20
A method comprising:
- determining a frequency response correction curve, wherein the frequency response correction curve corresponds to a difference between a first frequency response and a second frequency response;
- and
- applying the frequency response correction curve to a microphone output signal of a microphone element, thereby correcting a frequency response of the microphone element to a desired frequency response.
A method comprising:
- determining a frequency response correction curve, wherein the frequency response correction curve corresponds to a difference between a first frequency response and a second frequency response;
- and
- applying the frequency response correction curve to a microphone output signal of a microphone element, thereby correcting a frequency response of the microphone element to a desired frequency response,
- wherein determining the frequency response correction curve comprises:
- determining the first frequency response, wherein the first frequency response is a free-field frequency response of a first speaker;
- arranging the first speaker in a test assembly.
3 more elements
A test assembly, comprising:
- a housing configured to enclose a microphone and defining a first opening,
- a printed circuit board arranged inside the housing, providing a surface for mounting a microphone, and defining a second opening that is aligned with the first opening such that the first opening and the second opening provide an air path between the outside and the inside of the housing, and
- at least one layer of acoustically transparent material covering the first opening on the outside of the housing such that the air path provided by the first and second opening extends between the at least one layer of acoustically transparent material and the surface for mounting a microphone.
Dependencies are inferred from the claim text.