Unlock instant, AI-driven research and patent intelligence for your innovation.

Recording method and device applied to multi-person voice conference

A recording device and multi-person voice technology, applied in voice analysis, instruments, subscriber special services, etc., can solve problems such as reverberation, low level of space division, affecting voice recognition and recording effects, etc., to ensure the recognition effect and guarantee Recording effect, the effect of improving the quality of sound pickup

Active Publication Date: 2021-03-26
深圳波导智慧科技有限公司
View PDF7 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Recording method and device applied to multi-person voice conference
  • Recording method and device applied to multi-person voice conference
  • Recording method and device applied to multi-person voice conference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] 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 dislocation microphone and the two adjacent microphones, the included angles between the other microphones are the same. The method includes:

[0078] 101. Using n microphones, locate a target sound source, and acquire the direction of the target sound source.

[0079] Specifically, acquire the first sound parameters of the sound recorded by n microphones;

[0080] Confirming the target sound source according to the first sound parameter;

[0081] According to the angle between the misplaced microphone and the t...

Embodiment 2

[0091] 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:

[0092] 201. Acquire first sound parameters of sounds recorded by n microphones.

[0093] 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.

[0094] The obtaining process may be a recording process, and this embodiment of the present invention does not limit the specific recording process.

[0095] 202. Confirm the target sound source according to the first sound parameter.

[0096] Specifically, according to the frequency and amplitude in the first sound parameter, the target sound source is confirmed, specifically:

[0097] The first sound includes a plurality of sounds of different frequencies and d...

Embodiment 3

[0133] 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 , the equipment also includes:

[0134] The first acquisition module is used to locate the target sound source through n microphones, and acquire the direction of the target sound source;

[0135] The second acquisition module is used to acquire the reference sound from other directions through the misplaced microphone;

[0136] 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.

[0137] Optionally, the first acquisition module is specifically used for:

[0138] Obtain the first sound pa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a recording method and device applied to a multi-person voice conference, and belongs to the technical field of multi-person conferences and audio recording. The method is applied to recording equipment, the device comprises n microphones which are arranged circumferentially, one of the n microphones is a staggered microphone, included angles between the staggered microphone and two adjacent microphones are the sum, and the method comprises the following steps: positioning a target sound source through the n microphones to obtain a direction in which the target sound source is located; obtaining a reference sound from the direction through the misplaced microphone; and recording the target sound source according to the direction, and performing noise reduction on the recorded target sound according to the reference sound. According to the embodiment of the invention, the reference sound is obtained through the misplaced microphone, and the collected sound is denoised on the basis of the reference sound, thereby avoiding the unbalanced reception of the microphone caused by time delay, reducing the difficulty of subsequent denoising and algorithm processing,and improving the denoising 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04M3/56G10L17/00G10L17/04G10L21/0216G10L25/51
CPCG10L17/04G10L21/0216G10L25/51G10L2021/02166H04M3/561H04M3/568
Inventor 王青松任少虎夏罗爽
Owner 深圳波导智慧科技有限公司