A method, system and storage medium for mic-connected noise reduction for live broadcast
A microphone-connecting and noise-cancelling technology, which is applied in the direction of microphone mouth/microphone accessories, selective content distribution, electrical components, etc., can solve problems such as divergence, improve the quality of connecting microphones, eliminate echo phenomenon, and ensure the effect of live broadcast experience
Active Publication Date: 2021-11-30
SHANGHAI BILIBILI TECH CO LTD
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Repeating this way, there will be two results, one is that there is a very serious echo, and the other is that after the signal is continuously superimposed, the power does not converge to a fixed value but diverges, exceeding the undistorted amplification limit of the amplifier, and finally becomes For monotones like rectangular waves (sharp howling), this function is useless
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[0055] With the greatly improved performance of personal computers and mobile phones and the popularity of broadband Internet in recent years has been to meet the needs of train services in real-time audio and video capture, encoding, transmission, and thus was born the webcast. Webcast is through the Internet multimedia audio, video broadcast of an application, which the original audio and video capture the terminal device and the necessary coding and packaging, and then some predefined protocol to transmit data to the server in real time, by the server complete real-time forwarded to the audience to achieve. Webcast over conventional analog television or digital television applications, there is a pervasive device and the low threshold, and easy operation. It has anchor between the live broadcast platform as long as you can turn on a live broadcast platform through a personal computer or mobile phone connected to the Internet. Webcast business model is usually the case, the live...
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The invention relates to a microphone-connected noise reduction method, system and storage medium for live broadcast, and belongs to the technical field of the Internet. The method includes: the live broadcast terminal receives and samples the audio signal sent by the mic-connected object to obtain the mic-connected sampling signal; samples the local audio signal to obtain the local sampling signal; mixes the mic-connected sampling signal and the local sampling signal, and performs channel down-sampling. Dimensions, get the mono signal and send it to the mic-connected object; the system includes a local live broadcast terminal, which is used to sample and receive the local audio signal and the audio signal sent by the mic-connected object, and mix the two to reduce the dimension and send it to the mic-connected object ; Lianmai terminal, used to send audio signals to the local live broadcast terminal, and receive the monophonic signal sent by the local live broadcast terminal; storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the above-mentioned for The mic-free method for live streaming. Compared with the prior art, the present invention has the advantages of no echo and good wheat-connecting effect.
Description
Technical field [0001] The present invention relates to the field of Internet technologies, and Background technique [0002] Internet broadcast is an application of multimedia audio, video live through the Internet, which collects raw tone video through the terminal device and performs the necessary coding and package, and then transmits the data in real time to the server in a predefined protocol, and by the server Complete real-time forwarding to the audience. Web live broadcast compared to traditional analog TV or digital TV applications, there is a popularity of devices and low thresholds, simple operation and other advantages. An aquencing between live platforms with live broadcasts As long as you connect to the Internet, you can open a live broadcast on the live broadcast platform. [0003] Lianfei is a gameplay from the early video chat room, which is later used in the live broadcast. Several large live platforms provide Lian Mi function, making the anchors to compete wit...
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IPC IPC(8): H04R1/08H04N21/439H04N21/4788
CPCH04N21/439H04N21/4788H04R1/08
Inventor 姜军
Owner SHANGHAI BILIBILI TECH CO LTD