DEVICE FOR LOCATING SOUND SOURCES, METHOD FOR LOCATING SOUND SOURCES AND PROGRAM

DE602021055032T2Active Publication Date: 2026-05-27AUDIO TECHNICA CORP
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Patent Information

Application Number
DE602021055032
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-09-16
Publication Date
2026-05-27
Estimated Expiration
2041-09-16

AI Technical Summary

Technical Problem

Conventional sound source localization methods using variational inference require significant computational resources, making them unsuitable for real-time localization in dynamic environments.

Method used

A sound source localization apparatus that employs Projection Approximation Subspace Tracking (PAST) to calculate signal and noise subspaces without eigenvalue decomposition, combined with Delay-Sum Array and stochastic gradient descent to identify candidate vectors and optimize direction estimation, reducing computational load and enabling real-time localization.

Benefits of technology

The method achieves real-time sound source localization with high accuracy and reduced computational complexity, capable of tracking moving sources with minimal error.

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