Implementing a Real Time System for Lung Sound Spectrographs Using the TMS320C30 DSP

This application report describes how to develop a real-time system for producing lung sound spectrographs and other analyses using the Texas Instruments (TITM) TMS320C30 (C30) digital signal processor (DSP). The C30 floating point processor, hosted by a PC with a 486 DX2 processor (or better) is written entirely in the C language. With this real time system, analog input can be captured directly from a microphone and processed on the C30. The results can be sent to the PC and displayed graphically with negligible delay. This document was an entry in the 1995 DSP Solutions Challenge, an annual contest organized by TI to encourage students from around the world to find innovative ways to use DSPs. For more information on the TI DSP Solutions Challenge, see TI’s World Wide Web site at www.ti.com.