FMOD - FMOD is a programming library and toolkit for the creation and playback of interactive audio. It supports all leading operating systems and game platforms. BruteFIR - A software for applying long FIR filters to multi-channel digital audio, either offline or in realtime. ALSA (Advanced Linux Sound Architecture) - An audio library (and kernel level API) for Linux. Virtual Sampler SDK - Provides applications running on Pentium-class PCs under MS Windows 9x/NT/2000 with a MIDI-controlled, low-latency, fully programmable wavetable module implemented entirely in software. [Commercial] DUMB - Dedicated Universal Music Bastardisation - A high-quality IT/XM/S3M player library. Versions 0.9+ will have MOD support. An add-on is available for playing OGG files. [Freeware] GSI (General Sound Interface) - An audio system with network support and provides the ability to use stereo, 3D audio, Doppler effects, music playing (MIDI, HMP, MUS), and CD playing and ejecting/changing. [Open source, BSD License] Spark - A sound engine for Windows. It provides powerful sample, streaming, and module playback functions and can be used with and without DirectSound. It distributed in two forms: static (.lib) or dynamic (.dll) libraries. Ethan Brodsky's Sound Programming Libraries - Sound libraries for the PC-DOS platform. Imtelephone - Provide Win32 static linked codec libraries with source code implementing ITU G.722, G.723.1, G.729a, G.726, and G.728. Also provide audio arithmetic such as AEC, VAD, AGC, VoiceXML. [Commercial] Digital Room Correction - DRC generates digital room correction FIR filters to be used within HiFi systems in conjunction with real time convolution engines like BruteFIR. [Aladdin Free Public License (AFPL)]