DocumentCode
3002654
Title
FFT multi-frequency synthesizer
Author
Tabei, Makoto ; Ueda, Mitsuhiro
Author_Institution
Res. Lab. of Precision & Machinery & Electron., Tokyo Inst. of Tech., Yokohama, Japan
fYear
1988
fDate
11-14 Apr 1988
Firstpage
1431
Abstract
An fast-Fourier-transform (FFT)-based procedure which synthesizes the waveform directly from the set of spectral components is presented. A Gaussian window function is introduced to deal with noninteger frequencies. There exists an optimal condition for the width of the window which minimizes the numerical error. Techniques for the generation of linear envelope, decay, and frequency modulation are presented. Numerical results verify the validity of this procedure
Keywords
electronic music; fast Fourier transforms; frequency synthesizers; FFT multifrequency synthesizer; Gaussian window function; decay; frequency modulation; linear envelope; music sound synthesis; noninteger frequencies; numerical error; spectral components; Discrete Fourier transforms; Fast Fourier transforms; Fourier transforms; Frequency modulation; Frequency synthesizers; Gaussian distribution; Laboratories; Roundoff errors; Signal processing; Signal synthesis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location
New York, NY
ISSN
1520-6149
Type
conf
DOI
10.1109/ICASSP.1988.196868
Filename
196868
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