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Far-field sound pickup method, far-field sound pickup device and electronic device

A sound pickup device and far-field technology, which is applied in the field of electronic equipment, far-field sound pickup, and far-field sound pickup devices, can solve the problems of unclear sound resolution, poor sound pickup effect, short sound pickup distance, etc., and achieve accurate collection The effect of high accuracy, improved recognizability, and wide pickup range

Pending Publication Date: 2019-01-18
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In related technologies, the sound pickup distance of the sound pickup device is short, and when the sound source is outside the preset sound collection distance, it is easy to cause the sound to be unclear
If the mobile phone can only be used in the near field within a range of 1 meter, when the sound source reaches 2 meters beyond this range, the sound recognition cannot be performed
[0004] In addition, the sound pickup device cannot distinguish the direction of the sound source, resulting in the sound pickup device being unable to output enhanced synthetic sound signals based on the sound waves of the corresponding sound source, and unable to distinguish the interference sound waves output by other sound sources, the sound pickup effect is poor, and the resolution of the sound Low

Method used

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  • Far-field sound pickup method, far-field sound pickup device and electronic device
  • Far-field sound pickup method, far-field sound pickup device and electronic device
  • Far-field sound pickup method, far-field sound pickup device and electronic device

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Embodiment Construction

[0057] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0058] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood...

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Abstract

The present invention provides a far-field sound pickup method, a far-field sound pickup device and an electronic device. The far-field sound pickup method comprises the following steps: acquiring aninitial sound signal of at least one sound source to be measured through a plurality of sound pickup channels; calculating and determining the sound source direction to be measured according to the initial sound signal collected by each sound pickup channel; enhancing and synthesizing an initial sound signal corresponding to a sound source direction to be measured to form a synthesized sound signal; outputting a synthesize sound signal through an output channel. The far-field sound pick-up method can collect the initial sound signal from the sound source to be measured directionally, and has good directivity and high collection accuracy. The far-field sound pick-up method correspondingly enhances and synthesizes the initial sound signal output from the sound source to be measured for determining the orientation, so as to improve the recognition degree of sound waves, and has wide sound pick-up range and less noise interference.

Description

technical field [0001] The disclosure belongs to the technical field of speech recognition, and relates to a far-field sound pickup method, a far-field sound pickup device and electronic equipment. Background technique [0002] A sound pickup device is provided on the electronic equipment, and the sound pickup device is used for converting sound waves emitted by an external sound source into synthesized sound information that the electronic equipment can recognize. Wherein, the sound pickup device can filter part of the noise according to the setting of the internal program. For example, there are two microphones in the mobile phone for receiving sound waves, and the phase difference of the sound waves received by the two microphones is used to filter the sound waves, so as to minimize the interference of the ambient background sound, so that the user can get a clear voice message. [0003] In the related art, the sound pickup distance of the sound pickup device is short, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/04H04R1/20H04R1/08
CPCH04R1/08H04R1/20H04R3/04
Inventor 包越千程亮
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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