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Method, device, electronic device and storage medium for directional sound pickup

An audio and direction value technology, applied in the field of information processing, can solve problems such as poor user experience, poor voice control performance of voice control equipment, etc.

Active Publication Date: 2021-01-01
APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the current voice control device has realized the voice wake-up function and the directional sound pickup function, but the traditional voice control device does not effectively combine these two functions, which makes the voice control performance of the voice control device poor, resulting in bad user experience

Method used

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  • Method, device, electronic device and storage medium for directional sound pickup
  • Method, device, electronic device and storage medium for directional sound pickup
  • Method, device, electronic device and storage medium for directional sound pickup

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Embodiment Construction

[0019] The principle and spirit of the present disclosure will be described below with reference to several exemplary embodiments shown in the accompanying drawings. It should be understood that these specific embodiments are described only to enable those skilled in the art to better understand and realize the present disclosure, rather than to limit the scope of the present disclosure in any way.

[0020] In a traditional voice control device, the front-end voice signal collection methods generally use the following two solutions. The first solution is to use a unidirectional microphone, which uses a unidirectional electret microphone so that the pickup angle is aimed at the driver, and the sound suppression of other passengers in the car can reach 6dB. Another solution is to use a microphone array. This solution uses an array composed of at least two microphones. Through a beamforming algorithm, the sound pickup angle of the microphone array is fixed at the driver's positio...

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PUM

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Abstract

The invention provides a directed sound pickup method and device, an electronic device and a storage medium. In the method, an audio data stream including an audio signal and instant DOA (Direction ofArrival) values thereof is generated, the audio signal corresponds to an acoustic signal received from a sound source by a microphone array, and the instant DOA values indicate an instant direction from the acoustic signal to the microphone array; whether the audio signal includes a predetermined voice instruction is determined; if YES, a practical DOA value of the audio signal is obtained on thebasis of the instant DOA values, and the practical DOA value indicates a practical direction from the acoustic signal to the microphone array; and on the basis of the practical DOA value, the microphone array forms a directed sound pickup wave beam directed to the practical direction. A wakeup function and a directed sound pickup function of intelligent equipment are combined to realize dynamic directed sound pickup, the pickup effect is improved, and the user experience is improved.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the technical field of information processing, and more particularly, relate to a method, apparatus, electronic device, and computer-readable storage medium for directional sound pickup. Background technique [0002] With the rapid development of intelligent connected vehicles, the application of voice control functions in cars has become more and more common. People have gradually relied on voice assistants to complete some simple vehicle controls, such as adjusting the temperature of the air conditioner and initiating navigation by voice. In addition, voice control functions are also widely implemented in various electronic devices today. [0003] However, for the application of the voice control function in the vehicle, the interior space of the vehicle is narrow and closed. Therefore, when a certain user in the vehicle uses the voice control function, other occupants in the vehicle generall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/40G10L15/26
CPCG10L15/26H04R1/403
Inventor 欧阳能钧赵科宋晔
Owner APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD