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Sound collection method and electronic device

A technology for electronic equipment and sound collection, which is applied in electrical components, transducer circuits, microphone ports/microphone accessories, etc., and can solve the problem of not being able to automatically track sound sources.

Active Publication Date: 2014-04-09
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a sound collection method and electronic equipment, which solves the problem that the sound source cannot be automatically tracked when the beam array is used for sound collection

Method used

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  • Sound collection method and electronic device

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Experimental program
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Effect test

Embodiment 1

[0083] An embodiment of the present invention provides a sound collection method, which is applied to an electronic device. The electronic device includes a microphone array or is connected to a microphone array. The microphone array includes at least three microphones, and any two of the microphone arrays are adjacent to each other. The microphones are composed of microphone pairs, and each group of microphone pairs corresponds to a beam, and the corresponding beams of the microphone pairs continuously cover the spatial range of the sound to be collected. The first information in the sound will be enhanced by the electronic device, and the second information in the sound emitted by the sound source outside the corresponding range of the beam will be attenuated by the electronic device, such as figure 1 As shown, the method may include:

[0084] 101. Detect whether a predetermined condition is met, and obtain a detection result.

[0085] Among them, in the prior art, the beam...

Embodiment 2

[0092] An embodiment of the present invention provides a sound collection method, which is applied to an electronic device. The electronic device includes a microphone array or is connected to a microphone array. The microphone array includes at least three microphones, and any two of the microphone arrays are adjacent to each other. The microphones are composed of microphone pairs, and each group of microphone pairs corresponds to a beam, and the corresponding beams of the microphone pairs continuously cover the spatial range of the sound to be collected. The first information in the sound will be enhanced by the electronic device, and the second information in the sound emitted by the sound source outside the corresponding range of the beam will be attenuated by the electronic device, such as figure 2 As shown, the method may include:

[0093] 201. When a sound source is within a coverage range of a first beam, use a pair of microphones corresponding to the first beam to co...

Embodiment 3

[0134] An embodiment of the present invention provides an electronic device, the electronic device includes or is connected to a microphone array, the microphone array includes at least three microphones, any two adjacent microphones in the microphone array form a microphone pair, each A group of microphone pairs corresponds to a beam, and the beam corresponding to the microphone pair continuously covers the spatial range of the sound to be collected. When the sound is collected by the microphone pair, the first information in the sound emitted by the sound source within the corresponding range of the beam Enhancement processing will be performed by the electronic device, and the second information in the sound emitted by the sound source outside the corresponding range of the beam will be attenuated by the electronic device, such as Figure 5 As shown, the electronic device may include: a detection unit 301 , a first determination unit 302 , and a first acquisition unit 303 . ...

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Abstract

The embodiment of the invention discloses a sound collection method and an electronic device, and relates to the field of electronic devices. The method and the device solves the problem that automatic sound source tracking cannot be realized when a wave beam array is used to carry out sound collection. According to the specific scheme, whether a predetermined condition is met is detected; a detection result is acquired; when the detection result shows that the predetermined condition is met, a target wave beam is determined from at least two different wave beams; and through a microphone corresponding to the target wave beam, sounds given by a sound source in a range corresponding to the target wave beam are collected. The method and the device, which are provided by the invention, are applied to a sound collection process.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a sound collection method and electronic equipment. Background technique [0002] The microphone has omnidirectional pickup response, which means it responds equally to sound from all directions. Multiple microphones can be configured into an array to form a directional response or a beam pattern. The microphone array is composed of a group of microphone units in a certain range according to the spatial distribution, and the sound wave arrives at the interaction of the small time difference between each microphone in the array. , which makes it more sensitive to sounds from one or more specific directions, and has a strong suppression effect on disturbing noise, so it has attracted more and more attention in the field of acoustic applications. [0003] In the prior art, through comprehensive processing of all microphone signals in the microphone array, the microphone array ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08H04R3/00
Inventor 李锐
Owner LENOVO (BEIJING) LTD