A simple audio recording engine for android

Required: A simple audio recording engine - reusable in different projects. The requirements of the engine are: - Creation of a new recording - file should be saved in wave file format .wav - Record from devices microphone - Stop Recording - Resume Recording - Jump to a position - and either play or resume recording from there The engine should have functions that give feedback about: - Current position (playback or recording) in seconds - Length of recording in seconds - State of engine (empty, recording, stopped, playing)