NDLI: Computational methods for real-time Fourier synthesis

Content Provider	IEEE Xplore Digital Library
Author	Haken, L.
Copyright Year	1991
Abstract	In Fourier synthesis, natural musical sounds are produced by summing time-varying sinusoids. Sounds from individual instruments are analyzed to find the amplitude and frequency characteristics for their sinusoids; interpolation between the characteristics of several sounds is used to produce intermediate timbres. An ensemble can be synthesized by summing all the sinusoids for several sounds, but in practice it is difficult to perform such computations in real time. To solve this problem on inexpensive hardware, the author takes advantage of the masking effects of the auditory system. By avoiding the computations for perceptually unimportant sinusoids, and by using other computation reduction techniques to achieve interpolation, a large ensemble can be synthesized in real time. Unlike existing computation reduction techniques, the techniques described in this correspondence do not sacrifice independent fine control over the amplitude and frequency characteristics of each sinusoid.<>
Sponsorship	IEEE Signal Processing Society
Starting Page	2327
Ending Page	2329
Page Count	3
File Size	302409
File Format	PDF
ISSN	1053587X
Volume Number	40
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic noise Interpolation Signal processing algorithms Signal synthesis Noise generators Random number generation Least squares approximation Fluctuations Adaptive signal processing Frequency synthesizers
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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