portaudio19-dev 19+svn20100802-0ubuntu1 (i386 binary) in ubuntu natty

 PortAudio is a portable audio I/O library designed for cross-platform
 support of audio. It uses a callback mechanism to request audio
 processing. Audio can be generated in various formats, including 32
 bit floating point, and will be converted to the native format
 internally.
 .
 This package contains the development files.