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Distributed array alignment method

A distributed and array technology, applied in speech analysis, sound input/output, instruments, etc., can solve problems such as misalignment of received signals of distributed devices

Active Publication Date: 2020-08-28
BEIJING UNISOUND INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a distributed array alignment method to solve the problem of misalignment of received signals of each distributed device

Method used

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Embodiment Construction

[0047] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0048] An embodiment of the present invention provides a distributed array alignment method, such as figure 1 shown, including:

[0049] Step 1: Obtain the score of each device in multiple distributed devices for the wake-up word and the short-term energy sequence generated based on preset rules;

[0050] Step 2: Based on the short-term energy sequence corresponding to the highest score, intercept the preset area of ​​energy concentration as the electronic collection tag;

[0051]Step 3: Carry out sliding correlation detection between the electronic collection tag and the short-term energy sequence generated by each device, obtain the position of the electronic col...

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Abstract

The invention provides a distributed array alignment method. The problem that received signals of all distributed devices are not aligned is solved. The method comprises the following steps: obtaininga score of each device in a plurality of distributed devices for a wake-up word and a short-time energy sequence generated based on a preset rule; taking the short-time energy sequence correspondingto the highest score as a reference, and intercepting a preset area in the energy set as an electronic acquisition label; and carrying out sliding correlation detection on the electronic acquisition tag and the short-time energy sequence generated by each device to obtain the position of the electronic acquisition tag in the short-time energy sequence, taking the position as an alignment point, and intercepting the short-time energy sequence corresponding to each device again according to the alignment point to complete the alignment step.

Description

technical field [0001] The invention relates to the technical field of voice interaction, in particular to a distributed array alignment method. Background technique [0002] When facing multiple distributed devices for voice interaction, it is necessary to select a certain device to interact with people through some features. When there is only voice information, the principle of proximity response is usually used, which can be selected by judging the energy difference between devices. [0003] Each device picks up sound independently, and obtains the start and end points of the signal corresponding to the wake-up word through the local wake-up engine. Due to the influence of reverberation and noise, the signals received by each device are significantly different, resulting in the start and end points of the signal time obtained by each device. Inconsistent, resulting in not the same time period signal when calculating energy, thus affecting the final judgment result. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/16G10L25/21G10L25/51
CPCG06F3/16G10L25/21G10L25/51
Inventor 关海欣
Owner BEIJING UNISOUND INFORMATION TECH