As final I am posting my Thesis App. It consists in a voice recorder application that enables the microphone and captures the audio when the user drags the mouse. It then plays back lineraly with an animated stroke as playhead, which means it creats a queued playback. Thus, when the user records, he has to wait until the end of the sequence to listen his voice.
This app had the help of Zach Lieberman, Claudio Midolo and Dani Quilez.
First iteration of this idea, without the linear sequence.
This was the app that I used during in the installation:
This version has some improvements after the testing. Trying to make it more intuitive for the user.