Patent ID: 11921198
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An apparatus for determining a spatial position of an audio source in multi moving audio sources scenarios, the audio source being configured to transmit an audio signal, wherein the audio signal is emittable as a sound wave by the audio source, the apparatus comprising:
a plurality of audio signal inputs, wherein each audio signal input is configured to receive an audio signal version in the form of a local sound wave of the emitted sound wave; and
processing circuitry which is configured to:
determine a first probability for a direction of arrival of the audio signal version and a second probability for the direction of arrival of the audio signal version upon the basis of the plurality of the audio signal versions received within a first time interval, the direction of arrival being associated with a first spatial position relative to the apparatus;
determine a third probability for the direction of arrival of the audio signal version and a fourth probability for the direction of arrival of the audio signal version upon the basis of the plurality of the audio signal versions received within a second time interval, the direction of arrival being associated with a second spatial position;
determine a first probability difference between the first probability and the third probability;
determine a second probability difference between the second probability and the fourth probability;
combine the third probability and the first probability difference to obtain an updated third probability;
combine the fourth probability with the second probability difference to obtain an updated fourth probability; and
determine the certain spatial position upon the basis of the updated third probability and the updated fourth probability.