For their music education project First ID, Rapucation needed an application that could play back video with an instrumental track, while simultaneously recording the microphone, edit the recorded voice, and mix the voice with the backing track and export that mix as mp3 so it could be uploaded to the site. This way foreign students could translate songs in different languages. I programmed the application and did some work on the server-side video and audio transcoding.

Technologies used:
C++, openFrameworks, FFMpeg, SoX, libcurl