![]() PCM has severe limitations in application where high spectral efficiency is desired, for example, in mobile communication, CD quality broadcasting system etc. Pulse Code Modulation (PCM) has been widely used in speech coding. ![]() Real time implementation of a linear predictive coding algorithm on digital signal processor DSP32C The speed of calculation of the DSP 56000 is determined and is judged in comparison with the manufacturer's data for other digital signal processors. The results which the DSP gives on the ADM and the Fortran program are compared and assessed. In order to judge the results of the DSP 56000, a comparison is made with the equivalent FORTRAN FFT. The algorithm used by the FFT program is explained. This program is used to judge the speed of calculation and the accuracy of calculation of the signal processor. The above-mentioned applications program calculates a 'fast Fourier transform' (FFT). Tests are carried out which show that the simulation program corresponds to the functions and processes of the DSP 56000. The DSP 56000 has a development environment which makes it possible to test it on an IBM-PC AT. The digital signal processor DSP 56000 from MOTOROLA was selected as the test object. From the requirements for quick computing time (real time operation) and exact results, the use of digital signal processors is intended. On the Cooler Synchrotron project (COSY), the beam measurement data and their processing are collected digitally. International Nuclear Information System (INIS)
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