System and method for estimating the direction of arrival of a sound
AssigneeHear IP Pty Ltd
InventorJorge Mejia
Life of this patent
Estimating the term…
Abstract
A system and method for estimating the direction of arrival of sounds. One method including the steps of: forming a reference signal; detecting sound with two or more spatially separated, directional or spatially separated directional, microphones to produce two or more output signals; calculating the relationships between each of the two or more output signals and the reference signal; and estimating the direction of arrival based on differences between the relationships.
Claims7
A method of estimating a direction of arrival of a sound including the steps of:
- detecting sound with two or more spatially separated, directional, or spatially separated directional microphones to produce two or more output signals;
- calculating time and level differences between the two or more output signals;
- and
- estimating the direction of arrival of the sound based on a combination of the time delay and level differences.
A method of estimating a direction of arrival of a sound including the steps of:
- detecting sound with two or more spatially separated, directional, or spatially separated directional microphones to produce two or more output signals;
- calculating time and level differences between the two or more output signals;
- and
- estimating the direction of arrival of the sound based on a combination of the time delay and level differences, wherein the step of combining the time delay and level differences involves a weighted combination of measured time delay and level differences.
A system for estimating a direction of arrival of a sound including:
- detection means for detecting sound with two or more spatially separated, directional, or spatially separated directional microphones to produce two or more output signals;
- calculating means for calculating time and level differences between the two or more output signals;
- and
- estimation means for estimating the direction of arrival of the sound based on a combination of the time and level differences.
Dependencies are inferred from the claim text.