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Signal-processing software for teaching and research in psychoacoustics under UNIX and X-Windows

Culling, John Francis ORCID: 1996. Signal-processing software for teaching and research in psychoacoustics under UNIX and X-Windows. Behavior research methods, instruments, & computers 28 (3) , pp. 376-382. 10.3758/BF03200517

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A package of software is described that generates, analyzes, stores, and displays sampled waveforms. The package is designed for use under UNIX and includes C source code, UNIX manual pages, and tutorial documents. The programs interact via UNIX pipes using an ASCII-text data format, which enables the user to view the data in numerical form as well as through the use of plotting programs. Among many other functions, the programs can do the following: efficiently generate linearphase FIR filters with arbitrary transfer functions; generate impulse responses for rectangular rooms of specified dimensions; convolve waveforms with each other; perform Fourier transformation and inverse Fourier transformation; filter waveforms in the Fourier domain; filter waveforms according to the peripheral frequency selectivity of the human auditory system; cross-correlate waveforms; autocorrelate waveforms; synthesize complex waveforms, including vowel sounds and white noise. The software can read and write a variety of commonly used waveform file formats. The data can be plotted on an X-Window display using thegnuplot software, which has been included in the package. The complete software package is available via anonymous ftp from in ~ftp/pub/johncu/wave.tar.Z

Item Type: Article
Status: Published
Schools: Psychology
Publisher: Psychonomic Society
ISSN: 0743-3808
Last Modified: 18 Oct 2022 13:24

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