Android application that plays and records online radio stream

Hello every one , i am building an android application that plays online radio stream (icy/mp3). when the user select a station to listen to, the application connect through a StreamProxy server inside the application , that way i have access to the incoming bytes. what i need: when the station is playing , the user should be able to record and save what he listens to.( by clicking on a button ) what is NOT acceptable: -you should not save the visualizer data because it is a very low quality audio -delay, lagging and (record) timing problems task duration: 1 weak MAX budget 40-60$ more information hamdy @ 1to3 . ps