WAV (RIFF header) 8kHz 8-bit mono mu-law [PCM] single channel.
WAV (RIFF header) 8kHz 8-bit mono A-law [PCM] single channel.
The project end result is the following:
A simple web page where we can click a 'record start' and 'record end' on an Android smartphone that will produce the above 2 files. We should be able to click 'download' in order to download the files and check them on supported systems.