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A recording method and device applied to a multi-person voice conference

A recording device, multi-person voice technology, applied in speech analysis, instruments, special services for subscribers, etc., can solve the problems of reverberation, low spatial division, affecting speech recognition and recording effects, etc., to improve noise reduction efficiency, Avoid the effect of unbalanced radio and reduce difficulty

Active Publication Date: 2021-08-13
深圳波导智慧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, multi-person voice conferences are mostly concentrated indoors, with significant reverberation, which seriously affects voice recognition and recording effects. However, the space division of dual-mic-based recording equipment is relatively low, which cannot meet the voice enhancement requirements and reduce the cost of indoor multi-person voice conferences. noise demand

Method used

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  • A recording method and device applied to a multi-person voice conference
  • A recording method and device applied to a multi-person voice conference
  • A recording method and device applied to a multi-person voice conference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The embodiment of the present application provides a recording method applied to a multi-person audio conference, refer to figure 1 As shown, the method is applied to a recording device, and the device includes n microphones arranged in a circle in the same plane, one of the n microphones is a misplaced microphone, and the angles between the misplaced microphone and two adjacent microphones are respectively for and It should be noted that, except for the misplaced microphone and two adjacent microphones, the included angles between the remaining microphones are the same. The method includes: 101. Using n microphones, locate the target sound source, and obtain the location where the target sound source is located. direction.

[0075] Specifically, acquire the first sound parameters of the sound recorded by n microphones;

[0076] Confirming the target sound source according to the first sound parameter;

[0077] According to the angle between the misplaced micropho...

Embodiment 2

[0087] The embodiment of the present application provides a recording method applied to a multi-person audio conference, refer to figure 2 As shown, the method includes:

[0088] 201. Acquire first sound parameters of sounds recorded by n microphones.

[0089] Specifically, the first sound includes a reference sound and the sound of a target sound source, and the first sound parameters include the frequency, amplitude, and time when the first sound reaches the n microphones, wherein the reference sound is noise.

[0090] The obtaining process may be a recording process, and this embodiment of the present invention does not limit the specific recording process.

[0091] 202. Confirm the target sound source according to the first sound parameter.

[0092] Specifically, according to the frequency and amplitude in the first sound parameter, the target sound source is confirmed, specifically: the first sound contains a plurality of sounds with different frequencies and different...

Embodiment 3

[0127] The embodiment of the present application provides a recording device applied to a multi-person audio conference, refer to Figure 4 As shown, the method includes n microphones arranged in a circle, one of the n microphones is a misplaced microphone, and the angles between the misplaced microphone and two adjacent microphones are respectively and Equipment also includes:

[0128] The first acquisition module is used to locate the target sound source through n microphones, and acquire the direction of the target sound source;

[0129] The second acquisition module is used to acquire the reference sound from other directions through the misplaced microphone;

[0130] The noise reduction module is used to record the target sound source according to the direction, and perform noise reduction on the recorded target sound according to the reference sound.

[0131] Optionally, the first acquisition module is specifically used for:

[0132] Obtain the first sound paramete...

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Abstract

The present application relates to a recording method and equipment applied to multi-person voice conferences, and belongs to the technical field of multi-person conferences and audio recording. Including: the method is applied to a recording device, the device includes n microphones arranged in a circle, one of the n microphones is a misplaced microphone, and the angles between the misplaced microphone and two adjacent microphones are respectively and, the method It includes: positioning the target sound source through n microphones, and obtaining the direction of the target sound source; obtaining a reference sound from the direction through misplaced microphones; recording the target sound source according to the direction, and recording the target sound source according to the reference sound. The recorded target voice is noise-reduced. The reference sound is obtained through the misplaced microphone, and the collected sound is noise-reduced on the basis of the reference sound, thereby avoiding the unbalanced sound collection of the microphone due to time delay, and reducing the difficulty of subsequent noise reduction and algorithm processing, thereby Improved noise reduction efficiency.

Description

technical field [0001] The present application relates to the technical field of multi-person conference and audio recording, in particular to a recording method and device for multi-person audio conference. Background technique [0002] With the popularization and application of multi-person voice technology, it meets the current communication barriers caused by geographical restrictions and the needs of telecommuting. [0003] The recording method applied to a multi-person voice conference provided by the related art is based on a dual-mic recording device, the main mic is used to collect human voices, and the secondary mic is used to collect noise; [0004] However, multi-person voice conferences are mostly concentrated indoors, with significant reverberation, which seriously affects voice recognition and recording effects. However, the space division of dual-mic-based recording equipment is relatively low, which cannot meet the voice enhancement requirements and reduce t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M3/56G10L17/00G10L17/04G10L21/0216G10L25/51
CPCG10L17/04G10L21/0216G10L25/51G10L2021/02166H04M3/561H04M3/568
Inventor 夏罗爽王青松任少虎
Owner 深圳波导智慧科技有限公司