1)   AudioLab VC++ 3.1
AudioLab is a set of Visual C++ components for fast audio processing. They allow audio capture, processing and playback with zero lines of program code. The library supports large number of formats and technologies. Free for non-commercial use.
Audio Capture, Audio Processing, Audio Play, Audio Record, Audio Mix, Equalizer, Audio Visualization,

 2)   AudioLab VCL 3.1
Delphi/C++ Builder VCL components library for fast audio processing. Allows audio capture, processing and playback with zero lines of program code. The library supports large number of formats and technologies. Free for non-commercial use.
Audio Capture, Audio Processing, Audio Play, Audio Record, Audio Mix, Equalizer, Audio Visualization,

 3)   AudioLab .NET 3.1
AudioLab is a set of .NET 2.0 components for fast audio processing. They allow audio capture, processing and playback with zero lines of program code. The library supports large number of formats and technologies. Free for non-commercial use.
Audio Capture, Audio Processing, Audio Play, Audio Record, Audio Mix, Equalizer, Audio Visualization,