Ear interface detection
AssigneeCirrus Logic International Semiconductor Ltd.
InventorsBrian Thornock, Antonio J. Miller
Life of this patent
Estimating the term…
Abstract
An ear interface mode of headphones may be determined by measuring an acoustic response of the headphones. For example, the headphones may be determined to be in a leaky or sealed configuration. An adaptive noise cancellation (ANC) system may be controlled based on the determined ear interface mode of the headphones. For example, a set of configuration parameters may be loaded for the ANC system corresponding to the known ear interface mode. An anti-noise signal may be generated according to the selected configuration parameters, and that anti-noise signal added during playback of media, such as voice recordings, music, videos, or telephone call speech.
Claims23
A method, comprising:
- determining an acoustic response of a headphone device by estimating a secondary path of an adaptive noise cancellation (ANC) system including the headphone device;
- determining an ear interface mode among two or more ear interface modes of the headphone device based, at least in part, on the acoustic response of the headphone device including the secondary path;
- selecting a set of configuration parameters for the adaptive noise cancellation (ANC) system based, at least in part, on the determined ear interface mode;
- and
- outputting an audio signal to the headphone device, wherein the audio signal includes an anti-noise signal generated by the adaptive noise cancellation (ANC) system based, at least in part, on the selected set of configuration parameters.
An apparatus, comprising:
- a memory;
- and
- a processor coupled to the memory, wherein the processor is configured to perform steps comprising:
- determining an acoustic response of a headphone device by estimating a secondary path of an adaptive noise cancellation (ANC) system including the headphone device;
- determining an ear interface mode among two or more ear interface modes of the headphone device based, at least in part, on the acoustic response of the headphone of device including the secondary path;
- selecting a set of configuration parameters for the adaptive noise cancellation (ANC) system based, at least in part, on the determined ear interface mode;
- and
- outputting an audio signal to the headphone device, wherein the audio signal includes an anti-noise signal generated by the adaptive noise cancellation (ANC) system based, at least in part, on the selected set of configuration parameters.
A computer program product, comprising:
- a non-transitory computer readable medium comprising code to perform steps comprising:
- determining an acoustic response of a headphone device by estimating a secondary path of an adaptive noise cancellation (ANC) system including the headphone device;
- determining an ear interface mode among two or more ear interface modes of the headphone device based, at least in part, on the acoustic response of the headphone of device including the secondary path;
- selecting a set of configuration parameters for the adaptive noise cancellation (ANC) system based, at least in part, on the determined ear interface mode;
- and
- outputting an audio signal to the headphone device, wherein the audio signal includes an anti-noise signal generated by the adaptive noise cancellation (ANC) system based, at least in part, on the selected set of configuration parameters.
Dependencies are inferred from the claim text.