Abstract
A system for research, teaching, and clinical applications in speech and hearing is described. The system utilizes LabVIEWR software, National InstrumentsR expansion boards (D/A converter, DIO and DMA boards), and a MacintoshR IIFX computer. LabVIEW is an integrated package for data acquisition, digital signal processing, instrument and process control, data analysis and graphics. The package: (a) employs an icon-based language that does not require writing of code; (b) contains a comprehensive library of modular, pre-programed functions (e.g., A/D conversion, digital filtering, FFT analysis, etc.) callable by displaying icons to the screen; (c) links modules with a graphical ‘‘wiring’’ utility; and (d) is intuitively simple to use. The system is being used for signal generation, control of psychoacoustic and speech-perception experiments, data analysis, and signal processing. A package of hearing-science laboratory demonstrations has been implemented also. [Work supported by OCAST Grant No. HSO-005 and Presbyterian Health Foundation.]
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