System and method for improving headphone spatial impression
First Claim
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1. A headphone system, comprising:
- a headphone for providing sound from virtual speakers to a listener via a plurality of sound paths that are filtered with a plurality of filters;
a sensor for sensing a head movement of the listener; and
a processor for receiving information about the sensed head movement, wherein the processor is configured to;
based on the information about the sensed head movement, determine a head position of the listener with respect to a reference position,based on the determined head position, apply first delays in the plurality of sound paths for a hold time and/or apply first filter coefficients for the plurality of filters for the hold time, the hold time selected based on the information about the sensed head movement, andfollowing the selected hold time, apply other delays in the plurality of sound paths and/or apply other filter coefficients for the plurality of filters, the other delays and other filter coefficients based on a head position that drifts toward the reference position.
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Abstract
A headphone system includes a headphone, a sensor, and a processor. The headphone may provide sound from virtual speakers to a listener via a plurality of sound paths that are filtered with a plurality of filters. The sensor may sense an angular velocity of a movement of the listener. The processor may receive the angular velocity and may calculate delays in the plurality of sound paths and filter coefficients for the plurality of filters based on the angular velocity, and insert the calculated delays in the plurality of sound paths and adjust the plurality of filters with the calculated filter coefficients.
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26 Claims
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1. A headphone system, comprising:
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a headphone for providing sound from virtual speakers to a listener via a plurality of sound paths that are filtered with a plurality of filters; a sensor for sensing a head movement of the listener; and a processor for receiving information about the sensed head movement, wherein the processor is configured to; based on the information about the sensed head movement, determine a head position of the listener with respect to a reference position, based on the determined head position, apply first delays in the plurality of sound paths for a hold time and/or apply first filter coefficients for the plurality of filters for the hold time, the hold time selected based on the information about the sensed head movement, and following the selected hold time, apply other delays in the plurality of sound paths and/or apply other filter coefficients for the plurality of filters, the other delays and other filter coefficients based on a head position that drifts toward the reference position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for rendering sound from virtual speakers to a listener via a plurality of sound paths that are filtered with a plurality of filters, the method comprising:
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receiving, by a processor, information about a head movement of the listener, the information sensed by a sensor; based on the received information about the head movement of the listener, determining a head position of the listener with respect to a reference position; based on the determined head position, applying first delays in the plurality of sound paths for a hold time and/or applying first filter coefficients for the plurality of filters for the hold time, the hold time selected based on the information about the head movement; and following the selected hold time, applying other delays in the plurality of sound paths and/or applying other filter coefficients for the plurality of filters, the other delays and other filter coefficients based on a head position that drifts toward the reference position. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification