Speech‐Compression Simulation Compiler

Speech‐compression systems can often be profitably studied by digital‐computer simulation. The computer programming of such systems can be greatly simplified by the use of a compiler called PATSI, which is described in this talk. Using PATSI, which has been realized on the TX‐2 computer, an engineer without programming experience can produce a system‐simulation program by inspection of the block diagram of the system. If his system contains unusual elements, he can define them for the compiler, again without programming experience. Unlike BLODI, the other major block diagram compiler known to the author, PATSI is intended for on‐line computer investigations. Thus a simulation may, if desired, include elements whose parameters the user can vary while the system is operating. The user may also view on an oscilloscope the waveforms, Lissajous figures, etc., at any points in the system. These properties often make it easier to study the simulated system than the actual system in the laboratory. Several new sp...