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Sound source localization method, device, intelligent device and storage medium

A technology for sound source localization and intelligent equipment, which is applied in positioning, measuring devices, instruments, etc., can solve the problems of inability to accurately determine the wake-up time, low sound source localization accuracy, etc., and achieves a simple and efficient implementation method and achieves far-field pickup , the effect of improving quality

Active Publication Date: 2021-07-20
BEIJING ORION STAR TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a sound source localization method, device, smart device, and storage medium to solve the problem in the prior art that the wake-up time cannot be accurately determined, resulting in low accuracy of sound source localization

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  • Sound source localization method, device, intelligent device and storage medium
  • Sound source localization method, device, intelligent device and storage medium
  • Sound source localization method, device, intelligent device and storage medium

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0037] For the convenience of understanding, the nouns involved in the embodiments of the present invention are explained below:

[0038] PCM (Pulse Code Modulation) is also called Pulse Code Modulation. The sound data in PCM is not compressed. If it is a monophonic file, the sampling data will be stored in sequence of time. Generally, 8 milliseconds of PCM data is regarded as one frame of PCM data, and one frame of PCM data is 128short. 1short=2byte (byte)=16bit (bit).

[0039] Microphone Array is a system composed of a certain number of acoustic sensors (usually microphones) used to sample and process the spatial characteristics of the sound field. The sou...

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Abstract

The present invention relates to the technical field of speech signal processing, and discloses a sound source localization method, device, intelligent device and storage medium, the method comprising: determining whether to trigger a localization operation according to pulse code modulation PCM data obtained from a speech collection device, Each frame of PCM data carries a frame number; the frame number is extracted from the PCM data that triggers the positioning operation; the frame number is sent to the voice collection device, so that the voice collection device calculates the sound source orientation according to the PCM data corresponding to the frame number. The technical solutions provided by the embodiments of the present invention improve the accuracy of sound source positioning, thereby realizing far-field sound pickup, improving the quality of voice recognition, and improving user experience.

Description

technical field [0001] The present invention relates to the technical field of voice signal processing, in particular to a sound source localization method, device, intelligent equipment and storage medium. Background technique [0002] At present, more and more products on the market have voice interaction functions, such as smart speakers, robots and other smart devices. When these smart devices receive the wake-up command, they will turn from the sleep state to the working state, and start to collect voice signals through the voice collection device, and then can recognize and analyze the voice signal, so as to respond to the interactive command corresponding to the voice signal. Obviously, in the process of product function realization, sound source localization is very important. Only by accurately locating the direction of the user's sound source can the voice signal sent by the user be accurately obtained and the correct response behavior can be performed. [0003] A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/20
Inventor 郑垦
Owner BEIJING ORION STAR TECH CO LTD
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