Research And Implementation Of Real-time Speech Processing Technology For Mobile Internet

In these years,the 4G network has matured;5G networks will be put into commercial;real-time voice mobile application will gradually replace the traditional voice communication.In this paper,we will study the real-time speech processing technology.Firstly,the paper introduces the research background,the research status and the related technology.Then,on the basis of clarifying the basic principle of SIP protocol,we realize the SIP protocol stack: the session layer,the transaction layer and the transport layer,to complete the generation,forwarding and transmission of SIP messages.OpenSIPS providing routing,authentication and other services for SIP message interaction with SIP protocol stack to achieve Voice session establishment and release and other functions.And then use Android as the platform to design the client as user interface,communication module and voice module three parts,the user interface using the Activity component to achieve,the communication module using the SIP protocol stack also responsible for the transmission of voice data,this The module mainly contains two methods: registration service and user event.The voice module realizes the sending,receiving,recording,playback,compression,decompression of voice data.Finally,the adaptive scheme of voice codec is proposed,and the network state is monitored in real time through the broadcasting mechanism in Android development.Two kinds of speech codec algorithms are switched in real time by the change of broadcast to realize the function of voice codec automatic switching.Based on the analysis and research of real-time speech processing technology and the innovation of adaptive speech codec algorithm,this paper realizes real-time voice call system based on mobile Internet,which can be used in mobile social and voice communication systems.