Raga is an ActiveX control for generating and recording audio signals using a standard PC sound card. Raga can generate sinusoidal, rectangular, triangular, multi tone, white and pink noise signals as well as arbitrary waveform signals and signals stored in wav-files. Signals can also be combined to form complex sequences and composite signals. Raga's triggerable recorder can record up to 16 channels simultaneously and stores data to disk or memory. Each of the sound card's inputs and outputs can be calibrated individually.