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Method for estimating direction of arrival of sound source, electronic equipment and chip system

A technology of electronic equipment and direction of arrival, applied in methods, estimating direction of arrival of sound sources, electronic equipment and chip systems, can solve problems such as low accuracy of DOA estimation and inability to apply multiple sound sources

Pending Publication Date: 2022-01-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this method of DOA estimation is applied, it cannot be applied to scenes containing multiple sound sources, and the frequency point data screened out in a complex acoustic environment is less and the screened out frequency point data may contain Other interference components make DOA estimation less accurate

Method used

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  • Method for estimating direction of arrival of sound source, electronic equipment and chip system
  • Method for estimating direction of arrival of sound source, electronic equipment and chip system
  • Method for estimating direction of arrival of sound source, electronic equipment and chip system

Examples

Experimental program
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Effect test

example 1

[0095] Example 1. The electronic device has the function of collecting audio signals.

[0096] In a possible implementation manner, step 301 may be implemented in the following manner: the electronic device collects audio signals through an audio collection device (for example, a microphone array) set in the electronic device.

[0097] For example, an electronic device can be figure 1 Electronics where the microphone array is shown.

example 2

[0098] Example 2. The electronic device does not have the function of collecting audio signals.

[0099] In a possible implementation manner, step 301 may be implemented in the following manner: the electronic device receives an audio signal from another device. This other device is provided with a microphone array for collecting audio signals.

[0100] For example, in Example 2, the electronic device may be a server, a cloud platform, and other devices.

[0101] It should be understood that, in the case that the electronic device has the function of collecting audio signals, the electronic device may also receive audio signals sent by other devices.

[0102] Ambient noise exists in most of the spaces in the natural state, and because there may be interference that has nothing to do with the presence or absence of the signal (referred to as device noise) in the generation, inspection, measurement or recording device, the audio signal collected by the microphone array may be ...

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Abstract

The invention provides a method for estimating the direction of arrival of a sound source, electronic equipment and a chip system, relates to the technical field of audio processing, can be applied to a multi-sound-source acoustic environment, and can obtain a relatively pure sound source signal. The method comprises the steps that the electronic equipment acquires audio signals, wherein the audio signals comprise noise, sound source signals of one or more target sound sources and reverberation signals; and the electronic device performs joint processing on the audio signal to obtain sound source signals of the one or more target sound sources and the direction of arrival of the sound source signals of the one or more target sound sources, and the joint processing comprises dereverberation processing, blind source separation processing and direction of arrival estimation processing.

Description

technical field [0001] The embodiments of the present application relate to the field of audio processing, and in particular to a method for estimating the direction of arrival of a sound source, an electronic device, and a chip system. Background technique [0002] Direction of Arrival (DOA) estimation is a research hotspot in array signal processing. Through DOA estimation, the direction of the sound source can be determined, so that the target sound can be picked up better. Therefore, DOA is estimated to become a key technology for human-computer interaction devices such as mobile phones, smart speakers, and large screens for remote meetings. [0003] Since the audio signal collected by the device is usually a mixture of sound source signal and noise, when performing DOA estimation, firstly, noise is used as an interference signal, and frequency points that do not contain noise or have less noise influence are screened out from the audio signal data. Then, DOA estimatio...

Claims

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Application Information

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IPC IPC(8): G10L21/0216G10L21/0272G10L25/51
CPCG10L21/0216G10L21/0272G10L25/51G10L2021/02082G10L2021/02166
Inventor 朱梦尧刘志韬施栋刘鑫
Owner HUAWEI TECH CO LTD