Headphone audio controller
AssigneeBose Corporation
InventorOle Mattis Nielsen
Life of this patent
Estimating the term…
Abstract
A method of determining an audio controller for a headphone that is configured to use an acoustic transducer to develop sound that is delivered to an ear of a user and that includes a feedback microphone that is configured to sense sound developed by the acoustic transducer, and a related computer program product and system. A first audio transfer function between the acoustic transducer and the feedback microphone is measured. A second audio transfer function between the acoustic transducer and the feedback microphone with a feedback controller applied is determined. The audio controller is calculated based on both the first audio transfer function and the second audio transfer function.
Claims20
A headphone comprising:
- an acoustic transducer that is configured to develop sound for delivery to an ear of a user;
- a feedback microphone that is configured to sense sound from the acoustic transducer and develop an output;
- and
- a processor, responsive to the feedback microphone output, and that is configured to:
- measure a first audio transfer function between the acoustic transducer and the feedback microphone;
- determine a second audio transfer function between the acoustic transducer and the feedback microphone with a feedback controller applied;
- and
- calculate an audio controller based on both the first audio transfer function and the second audio transfer function.
An audio device, comprising:
- an acoustic transducer that is configured to develop sound for delivery to an ear of a user;
- a feedback microphone that is configured to sense sound from the acoustic transducer and develop an output;
- and
- a processor, responsive to the feedback microphone output, and that is configured to:
- measure a first audio transfer function between the acoustic transducer and the feedback microphone;
- determine a second audio transfer function between the acoustic transducer and the feedback microphone with a feedback controller applied;
- and
- calculate an audio controller based on both the first audio transfer function and the second audio transfer function.
Dependencies are inferred from the claim text.