Abstract

To process digital signals (representing sound, image...) efficiently in real time on a PC we must combine several measures: adding an external preprocessing board, inputting data into the PC through high speed Bus (USB or, especially, PCI), choosing appropriate programming language and technique, using parallel processing (on multiprocessor computers. In this paper, two problems are presented: implementing real time digital filters on FPGA (instead of using a DSP) as a preprocessor, and then interfacing it to PC using PCI Bus. Good results have been obtained.