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

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

Active Publication Date: 2019-05-03
BEIJING ORION STAR TECH CO LTD
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  • Claims
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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 positioning method and device, intelligent device and storage medium
  • Sound source positioning method and device, intelligent device and storage medium
  • Sound source positioning method and 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 invention discloses a sound source positioning method and device, an intelligent device and a storage medium, and relates to the technical field of voice signal processing. The method comprises that whether a positioning operation is triggered is determined according to PCM (Pulse Code Modulation) data obtained from a voice collection device, and each frame of PCM data carries the frame number; the frame number is extracted from the PCM data which triggers the positioning operation; and the frame number is sent to a voice collection device so that the voice collection device calculates theorientation of a sound source according to the PCM data corresponding to the frame number. Thus, the sound source is positioned more accurately, far-field pickup is realized, the quality of speech recognition is improved, and the user experience is improved.

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 Applications(China)
IPC IPC(8): G01S5/20
Inventor 郑垦
Owner BEIJING ORION STAR TECH CO LTD
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