US 2021/0199533 A1Published application

Positioning method for specific sound source

AssigneeIndustrial Technology Research Institute

InventorsWei-Yi Chuang, Yao-Long Tsai

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Abstract

A positioning method for a specific sound source is provided. An acoustic signal in each of multiple positions of on a preset path is respectively collected through a sensor. A pre-processing is performed on the acoustic signal to obtain multiple signal features. The signal features are used as an input of a deep learning model. The deep learning model is used for a signal recognition to obtain multiple specific sound signals of each position. An autocorrelation function operation is performed on the specific sound signals obtained at a same position to obtain multiple autocorrelation coefficients. A representative value among the autocorrelation coefficients is selected as a representative coefficient corresponding to each position. A specific sound source position is found according to the representative coefficient of each position.

Claims8

Dependent claims

A positioning method for a specific sound source, comprising:

collecting respectively, through a sensor, an acoustic signal in each of a plurality of positions on a preset path;
performing a pre-processing on the acoustic signal to obtain a plurality of signal features;
using the plurality of signal features as an input of a deep learning model and using the deep learning model to perform a signal recognition to obtain a plurality of specific sound signals of each of the plurality of the positions;
performing an autocorrelation function operation on the plurality of specific sound signals obtained at a same position to obtain a plurality of autocorrelation coefficients;
selecting a representative value among the plurality of autocorrelation coefficients as a representative coefficient corresponding to each of the plurality of positions;
and
finding a specific sound source position according to the representative coefficient of each of the plurality of positions.

4 more elements

Dependencies are inferred from the claim text.