The Research Of Virtual Channel Model In The Distributed Audio Coding

A lot of wireless audio appear and develop gradually with nowadays socialdevelopment, the distributed audio coding comes with the tide of fashion. TraditionalIn the distributed audio coding system,the side information Y born at sender andaudio source X at at receiver compose a virtual channel.Because the existence of the area in time and space related noise, the distributed audio coding virtual channel model is very difficult.Hence,in order to solve the problem that how to low related noise of the time and space,this paper th-at hasing already the distributed audio coding virtual channel model brings up a kind scheme according to DWT distributed audio coding many virtual chann-els model. he main worrs and some innovative achievements reflect mainly in thefollowing asTpects:Firstly,we analyze DWT distributed audio coding virtual channel model.Takethe adoption Wyner-Ziv to the LL low frequency sonbands of DWT, but tohight sonbands take to adopt SPIHT method encoding. In the model foundationup,we bring up a kind scheme according to DWT distributed audio codingmany virtual chann-els model:adopt to DWT, resolve to several audio sonsources,each audio audio sonsource to constitute many virtual channels in responseto a virtual channel.Secondly, combine DWT and make a code rate, combine the noise, pla it offormula analysis this model decoding complications and delay time.Finally,we emulate DWT distributed audio coding many virtual channels model performance.We emulate DWT distributed audio coding many virtual channelsmodel that DWT distributed audio coding virtual channel model as a result.It Well verifie s DWT distributed audio coding many virtual channels modeldepe-nd on a letter way the model distribute type audio frequency code systembottom code in brief.They prove the usefulness and possibility of the system.