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

Microphone channel determination method and device, conference terminal and medium

A determination method and microphone technology, applied in the direction of speaker distribution signal, etc., can solve the problems of untimely and effective switching of channels, and achieve the effect of fast and accurate switching

Active Publication Date: 2022-05-13
广州迈聆信息科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing technical solutions only use the energy of the speech signal as the basis for channel judgment, and cannot effectively switch to another channel with a strong audio signal, resulting in untimely channel switching

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
  • Microphone channel determination method and device, conference terminal and medium
  • Microphone channel determination method and device, conference terminal and medium
  • Microphone channel determination method and device, conference terminal and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 It is a schematic flowchart of a method for determining a microphone channel provided in Embodiment 1 of the present invention. This method is applicable to the situation of switching microphone channels in an audio conferencing system. The method can be executed by a device for determining a microphone channel, wherein the device can be implemented by software and / or implemented by hardware, and generally integrated on the conference terminal. In this embodiment, the conference terminal can be regarded as a terminal device installed with an audio-visual conference software system.

[0035] Audio conferencing software systems, including audio and video conferencing software systems. The audio conferencing system includes an audio conferencing software system and an audio conferencing hardware system, and the audio conferencing software system may be a software system integrated on a conference terminal. Audio conferencing hardware systems can include micropho...

Embodiment 2

[0104] image 3 It is a schematic flowchart of a method for determining a microphone channel provided by Embodiment 2 of the present invention. Embodiment 2 is embodied on the basis of the foregoing embodiments. In this embodiment, the current signal state of each microphone channel at the current moment will be determined according to the signal-to-noise ratio of each microphone channel and the previous signal state of each channel at the previous moment, and the current signal state includes quiet state and There is a signal state, which is further embodied as: for each microphone channel, determine the signal reference information corresponding to the previous signal state of the microphone channel at a moment; according to the signal reference information and the signal-to-noise ratio of the microphone channel, Determine the current signal state of the microphone channel at the current moment.

[0105] Please refer to Embodiment 1 for the content that is not exhaustive in...

Embodiment 3

[0140] Figure 5 A schematic structural diagram of a microphone channel determination device provided in Embodiment 3 of the present invention, which is applicable to microphone channel switching in an audio conferencing system, wherein the device can be implemented by software and / or hardware, and is generally integrated in a conference terminal superior.

[0141] Such as Figure 5 As shown, the device includes:

[0142] The first determination module 310 is configured to determine the current signal state of each microphone channel at the current moment according to the signal-to-noise ratio of each microphone channel and the previous signal state of each channel at the previous moment, and the current signal state includes a quiet state and signaled state;

[0143] A selection module 320, configured to select a candidate microphone channel with the highest signal-to-noise ratio from each of the microphone channels;

[0144] The second determination module 330 is configu...

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 discloses a microphone channel determination method and device, a conference terminal and a medium. The method comprises the following steps: determining the current signal state of each microphone channel at the current moment according to the signal-to-noise ratio of each microphone channel and the previous signal state of each channel at the previous moment; selecting a candidate microphone channel with the highest signal-to-noise ratio from the microphone channels; determining a next target channel according to the channel reference information corresponding to the target signal state of the current target channel and the signal-to-noise ratio of the candidate microphone channel; and outputting the target audio signal. According to the method, the signal state of each microphone channel is subdivided into the signal state and the quiet state, so that the current signal state determined based on each microphone channel can timely and effectively realize switching of the microphone channels.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of audio conferencing, and in particular to a method and device for determining a microphone channel, a conference terminal and a medium. Background technique [0002] There are multiple single-microphone nodes in the audio conferencing hardware system, and multiple single-microphone nodes are set in different positions of the conference software system. When speakers in different positions in the near-end conference room speak, each single-microphone node will collect the current speech The audio signal of the person and the surrounding speakers, and then the audio conferencing hardware system selects the audio signal of the speaker to output to the far end. [0003] The current technical solution is mainly based on the detection of the voice signal energy when the microphone channel is switched, and the speaker with the loudest microphone is used as the speaker, the microphone cha...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12
CPCH04R3/12
Inventor 李正华李勤
Owner 广州迈聆信息科技有限公司