Sound source localization method and device

A technology of sound source localization and sound pressure difference, which is applied in measuring devices, stereo circuit arrangements, microphone signal combinations, etc., and can solve problems such as low accuracy of target sound source pickup and misjudgment of sound source localization

Active Publication Date: 2019-09-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a sound source localization method and device to solve the problem of easy misjudgment of sound source localization when the existing target voice is picked up in a directional manner, resulting in low accuracy of picking up the target sound source

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  • Sound source localization method and device

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Embodiment Construction

[0112] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0113] In the embodiment of the present invention, the terminal may be a device that provides voice and / or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, such as: a mobile phone (or called "cellular" phone), which can be portable, pocket, handheld, wearable devices (such as smart watches, smart bracelets, etc.), tablet computers, personal computers (PC...

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Abstract

The invention discloses a sound source localization method and device to solve the problem of low picking-up accuracy when picking up target voice in the prior art. This method is applied to a terminal with two microphones on the top, and the two microphones are respectively located on the front and back of the terminal: when the terminal is in a video call state, when it is determined whether there is a target user within the shooting range of the camera, the two microphones are used to collect sound signal, and calculate the sound pressure difference between the two microphones based on the collected sound signals; use the sound pressure difference of the two microphones to judge whether the condition of using the sound pressure difference to judge the direction of the sound source is met; when the conditions are met, based on the two The sound pressure difference of the microphone determines whether the sound signal contains a backward sound signal; if it is determined that the sound signal contains a backward sound signal, the backward sound signal in the sound signal is filtered out, so that the In the noise ratio scene, the sound source location is based on the sound pressure difference, which can improve the picking accuracy of the target sound source.

Description

technical field [0001] The present invention relates to the technical field of terminals, in particular to a sound source localization method and device. Background technique [0002] Speech processing equipment will inevitably be interfered by various noises when collecting or inputting speech signals. In the actual voice communication system, the common noises include stationary noise and directional interference sound sources. These noises are easy to interfere with the target voice signal, seriously reducing the auditory comfort and intelligibility of the collected voice. Traditional noise estimation and single-channel speech enhancement algorithms are not ideal for suppressing directional interference noise. For this reason, it is necessary to design some systems with interference noise suppression capabilities according to the actual situation, so as to achieve the purpose of directional pickup of the target voice and the ability to suppress other noises. [0003] Mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/725G10L21/0208G01S11/14G06K9/00H04M1/72433
CPCG01S11/14G10L21/0208H04M1/72433G06V40/16G06V40/168G01S3/802G01S2205/01G01S5/18H04R5/04H04R5/027G10L21/0224H04R3/04H04R3/005
Inventor 王乐临
Owner HUAWEI TECH CO LTD
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