Speex is a patent-free compression format designed especially for speech. It is specialized for voice communications at low bit-rates in the 2-45 kbps range. Possible applications include Voice over IP (VoIP), Internet audio streaming, audio books, and archiving of speech data (e.g. voice mail).
SILC Runtime Toolkit (SRT) provides useful utility functions for application programmers. SRT can be used as the main runtime in any application. It provides an application main loop, hash tables, lists, atomic operations, threads, locks, queues, a file descriptor stream, a socket stream, network routines, a finite state machine, a memory pool, a random number generator, buffers, regular expressions, and many other features. It natively supports Unix/Linux, Windows, Mac OS X, and Symbian OS platforms.