Android Java - Implement Wav Files Overwritting - $60 Dollars

Hi. I have been developing an App for several months, of which you can find a little part of it as a Zip of an Android Studio Project, attached to this Description. It contains all the parts of the App you need to implement what I need. . What I need is someone to implement an Audio Overwrite Function, for previously recorded Wav Files by this App. . For recording them, I use AudioRecord (instead of MediaRecorder). . They start being recorded when the User presses the button Start (which then changes its text to "Stop). If the User presses Stop, the Wav File is saved. If the User presses Play, the wav file "[login to view URL]" will be played. . I need that if the User presses Pause, to get the time of play and (audio) bit of the moment when the users pressed pause, and if the user then presses "Start", that the Wav File would then be Overwritten from the Pause Moment on (not all the file, just from the pause moment on) with the New Recorded Audio. . So. . To anyone who wants to do it. I can give you $60 Dollars. . Could be a One or Two Hours Job if you got some experience. So it is a good opportunity. . As final details, the Two Classes that matter to this are MainNotes (handles all what I said), and AudioHandler (handles all the Audio Methods and saves the Wav Files). After you install the App, it will ask you to select a folder. That folder will be where the Wav Files will be stored. . So, any questions, let me know. . If you are interested, I expect your proposal. . Thank you for your time.