ein is a simple interface that makes it easy to implement digital filters process sounds and tinker with signal processing algorithms. . The results are converted to sound, and analyzed using the discrete Fourier transform. The interface was developed by Paul Lansky, using the filter compiler designed by Ken Steiglitz (see his ``Ein Kleiner Filter Compiler,'' Tech. Report CS-TR-279-90, Dept. of Computer Science, Princeton Univ., Aug. 1990). The syntax of ein scripts is basically a description of digital filter flow diagrams. It is essentially a scratchpad for dsp and is not meant to be a production tool.
by Paul Lansky, James Pritchett and Steven M. Boker
