www: portaudio
license: MIT like
optional, remove by deleting #define SUPPORT_FFMPEG and #define SUPPORT_LIBAV in src/LightsprintIO/supported_formats.h (for Linux, remove linking from makefile)
Windows: precompiled svn revision 1953 is a part of SDK
OSX: install with sudo port install portaudio
Ubuntu: install with sudo apt-get install portaudio19 ?