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High-directional microphone longitudinal array sound collection device

A microphone and high-directional technology, which is applied to sensor components, microphone mouth/microphone accessories, sensors, etc., can solve problems such as difficult long-distance voice collection, affecting work efficiency, and high difficulty of long-distance voice collection.

Active Publication Date: 2019-03-12
宁波桑德纳电子科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Relying on various video surveillance or video capture systems, it is possible to accurately capture relevant personnel in long-distance videos, but it is difficult to perform long-distance voice capture when using video surveillance systems for long-distance shooting. The monitoring system can use language and dialogue information to analyze suspects, and the video acquisition system can record video and voice synchronously, which will greatly affect work efficiency
However, it is still extremely difficult to carry out long-distance voice acquisition under the background noise conditions of the actual environment

Method used

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  • High-directional microphone longitudinal array sound collection device
  • High-directional microphone longitudinal array sound collection device
  • High-directional microphone longitudinal array sound collection device

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] see figure 1 , figure 2 and image 3 As shown, the high-direction microphone longitudinal array sound collection device of the present invention includes a base 1 and a pickup tube 2 arranged in an array on the base 1, and at least one group of pickup tubes 2 is arranged in an array. For example, two groups are set, the first high-pointing microphone 3 at the free end of the pickup tube 2, the second high-pointing microphone 4 is provided at the end of the pickup tube 2 connected to the base 1, the The base 1 is provided with several sound-gathering structures matching the second high-direction microphone 4, and the sound-gathering structure refers to a horn-shaped or parabolic reflective surface 6 that focuses the sound reflection to the second high-direction microphone 4, It can gather more sound source signals and accurately feed ...

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Abstract

The invention discloses a highly directional microphone longitudinal array sound collector, and aims to provide a highly directional microphone longitudinal array sound collector capable of long-distance voice collection. The main points of the technical scheme lie in that the highly directional microphone longitudinal array sound collector includes a base and a pickup tube disposed on the base in an array manner; a free end portion of the pickup tube is provided with a first highly directional microphone; a connection end portion of the pickup tube with the base is provided with a second highly directional microphone; the base is provided with a plurality of sound gathering structures matching the second highly directional microphone; at least one omnidirectional microphone is arranged between the first highly directional microphone and the second highly directional microphone; the longitudinal array arrangement of the pickup tube facilitates the uniform processing of feedback noise signals; and the first highly directional microphone, the second highly directional microphone and the sound gathering structures can receive voice signals of a target sound source in a highly directional and sufficient manner, and can form linkage with a video model.

Description

technical field [0001] The present invention relates to a sound pickup device, more specifically to a sound collection device with a vertical array of high-direction microphones. Background technique [0002] Various video surveillance or video acquisition systems have been widely used in security, security, interview and other fields. Relying on various video surveillance or video capture systems, it is possible to accurately capture relevant personnel in long-distance videos, but it is difficult to perform long-distance voice capture when using video surveillance systems for long-distance shooting. The monitoring system can use language and dialogue information to analyze suspects, and the video acquisition system can record video and voice synchronously, which will greatly affect work efficiency. However, it is still extremely difficult to carry out long-distance voice acquisition under the background noise conditions of the actual environment. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/08
CPCH04R1/083
Inventor 朱沄杰徐伟明何颋黄松岳
Owner 宁波桑德纳电子科技有限公司
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