The SoundTouch Library is originally written by Olli Parviainen in C++. Although a .NET wrapper library is available, this library aims to be a complete rewrite in C#.

##SoundTouch library Features

• Easy-to-use implementation of time-stretch, pitch-shift and sample rate transposing routines.
• Full source codes available for both the SoundTouch library and the example application.
• Clear and easy-to-use programming interface via a single C# class.
• Supported audio data format : 16Bit integer or 32bit floating point PCM mono/stereo
• Capable of real-time audio stream processing:
• input/output latency max. ~ 100 ms.
• Processing 44.1kHz/16bit stereo sound in realtime requires a 400 Mhz Intel Pentium processor or better.
• Released under the GNU Lesser General Public License (LGPL) v2.1

Original SoundTouch C++ project: http://www.surina.net/soundtouch