slightly clearer audio, slightly tweaked music

Change-Id: I4ad1a1c7b32d13dd7eb4fdffcd99dfa1c059d660
merged in master

Change-Id: I6027af84b5522bbefc45a790c59ba119995b1677
Merge pull request #3 from jonathanmarmor/andreas/modified_audio

slightly clearer audio, slightly tweaked music