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Microphone array adjustment method, microphone array and electronic device

A technology of microphone array and adjustment method, which is applied in the direction of electrical components, transducer circuits, sensor parts, etc., can solve the problems of lowering the quality of voice collection and too large collection area, and achieve the effect of precise control and quality improvement

Inactive Publication Date: 2014-09-17
LENOVO (BEIJING) CO LTD
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AI Technical Summary

Problems solved by technology

[0004] In the prior art, since the spatial positions of human faces are different, their requirements for beamforming are also different. If beams with fixed parameters are used to collect sound source signals at different positions, the collection area may be too large or too large. Small, which reduces the quality of speech acquisition

Method used

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  • Microphone array adjustment method, microphone array and electronic device
  • Microphone array adjustment method, microphone array and electronic device
  • Microphone array adjustment method, microphone array and electronic device

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The method for adjusting a microphone array provided by an embodiment of the present invention is applied to a microphone array, and the microphone array includes at least one microphone for collecting sound from a sound source, such as figure 1 As shown, the methods include:

[0026] S101. Detect spatial parameters of sound sources in a space.

[0027] Wherein, the spatial parameter specifically refers to the spatial position relationship of the sound...

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Abstract

The embodiment of the invention provides a microphone array adjustment method, a microphone array and an electronic device and relates to the field of digital signal processing so that wave beams can be adjusted dynamically according to a space position of an acoustic source and thus the quality of audio acquisition is improved. The microphone array adjustment method is applicable to the microphone array which includes at least one microphone used for collecting voices made by the acoustic source. The microphone array adjustment method includes the following steps: detecting a space parameter of the acoustic source in a space; determining a corresponding wave-beam forming parameter according to the detected space parameter; and according to the wave-beam forming parameter, adjusting the microphone array so as to enable the microphone array wave-beam forming to conform to the space position of the acoustic source.

Description

technical field [0001] The invention relates to the field of digital signal processing, in particular to a method for adjusting a microphone array, a microphone array and electronic equipment. Background technique [0002] With the continuous development of digital signal processing technology, microphone array technology has been widely used in various systems including computers, mobile terminals, audio / video communication conference systems, speech recognition systems, etc. Compared with a single microphone, a microphone array can spatially sample a specific signal in a specific direction in the airspace through beamforming, and use the sampled spatial information to enhance a signal in a specific direction and signal in other directions. Suppression, so that it can capture sound more sensitively, effectively suppress environmental noise, and eliminate the influence of echo. [0003] The key to using a microphone array for spatial signal sampling lies in beamforming, whi...

Claims

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Application Information

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IPC IPC(8): H04R3/00
Inventor 李佳
Owner LENOVO (BEIJING) CO LTD
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