Added new demos
Merge pull request #5 from hkjorgensen/hkjorgensen/audio_demos

Added new audio demos
Renamed directory from audio to speech
Update index files
Merge pull request #11 from hkjorgensen/hkjorgensen/rename_audio

Rename audio-input to speech
Manual merge from Henrik
Added audio-input demo

Show basic FFT processing of audio amplitude and particular frequency
bins
Updated index to include new demo
Remove unused file
Merge pull request #13 from hkjorgensen/hkjorgensen/cleanup

Remove unused file
Added README to speech-input
Added docs for audio-synth
Added docs for speech-output
Added docs for audio-feedback
Merge pull request #14 from hkjorgensen/hkjorgensen/add_readme

Add readmes