- Requires PortAudio (windows dll and headers are provided in the portaudio_win directory)
- edit Makefile or w32build.bat to point to PortAudio include and build directories
- G++: run Makefile
- MSVC: run w32build.bat

The prepoccesor definitions LOCKING, LOCK_FREE and EXTRA_WORK
can be all be toggled in main.cpp to test different modes:

LOCKING: -use locks to synchronize threads
LOCK_FREE -use PortAudio's ring buffer instead of simple ring buffer
EXTRA_WORK: -adds extra simulated load time

load ~.wav -loads a new wav file
quit -exits program