I have been trying to write a random number generator using the hardware of the phone. After reading other people's attempts and tried some. I came up with the following to generate the seed:
- Play a short pre-recorded white-noise on the phone's speaker.
- The mic gets the feedback, which then gets mixed in the playback audio.
- This should create a continuous white-noise output.
This can be done at program start and feeds into a PNG. What do you think?