Determination of sound source direction
AssigneeNokia Technologies Oy
InventorsHannu Pulakka, Matti Hamalainen, Mikko-Ville Laitinen
Life of this patent
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Abstract
An apparatus including circuitry configured to: provide a plurality of metrics associated with multiple directions, wherein the metrics are dependent, for the respective multiple directions, on an amount of direct-sound propagated; accumulate, for the respective multiple directions, values dependent upon the metrics associated with the respective multiple directions to enable determination of sound source directions.
Claims21
An apparatus comprising
- at least one processor and
- at least one non-transitory memory including computer program code,
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
- determine one or more directions of arrival for at least one audio signal;
- determine at least one of:
- one or more energy values for the at least one audio signal, or
- one or more ratios for the at least one audio signal;
- accumulate a respective value for at least one direction associated with a first direction of arrival, of the one or more determined directions of arrival, based, at least partially, on at least one of:
- an energy value, of the one or more determined energy values, associated with the first direction of arrival, or
- a ratio of the one or more determined ratios,
- wherein the at least one direction comprises a plurality of directions;
- and
- determine a source direction of at least one sound source based, at least partially, on the accumulated respective value.
A method comprising:
- determining one or more directions of arrival for at least one audio signal;
- determining at least one of:
- one or more energy values for the at least one audio signal, or
- one or more ratios for the at least one audio signal;
- accumulating a respective value for at least one direction associated with a first direction of arrival, of the one or more determined directions of arrival, based, at least partially, on at least one of:
- an energy value, of the one or more determined energy values, associated with the first direction of arrival, or
- a ratio of the one or more determined ratios,
- wherein the at least one direction comprises a plurality of directions;
- and
- determining a source direction of at least one sound source based, at least partially, on the accumulated respective value.
A non-transitory computer-readable medium comprising program instructions stored thereon which, when executed with at least one processor, cause the at least one processor to:
- determine one or more directions of arrival for at least one audio signal;
- determine at least one of:
- one or more energy values for the at least one audio signal, or
- one or more ratios for the at least one audio signal ;
- accumulate a respective value for at least one direction associated with a first direction of arrival, of the one or more determined directions of arrival, based, at least partially, on at least one of:
- an energy value, of the one or more determined energy values, associated with the first direction of arrival, or
- a ratio of the one or more determined ratios,
- wherein the at least one direction comprises a plurality of directions;
- and
- determine a source direction of at least one sound source based, at least partially, on the accumulated respective value.
Dependencies are inferred from the claim text.