DocumentCode :
284761
Title :
A real-time DSP implementation of a flute model
Author :
Välimäki, Vesa ; Karjalainen, Matti ; Janosy, Zoltan ; Laine, Unto K.
Author_Institution :
Helsinki Univ. of Technol., Espoo, Finland
Volume :
2
fYear :
1992
fDate :
23-26 Mar 1992
Firstpage :
249
Abstract :
A computationally efficient semiphysical time-domain model of the flute is presented. The traditional method of modeling the one-dimensional wave propagation as a transmission-line, where all the losses as well as reflection and dispersion effects have been lumped to linear filters at the ends of the line, is used. The model is excited by white noise, and the nonlinear interaction between the excitation and the tube resonator has been modeled by a static memoryless nonlinearity. The model is simple enough to be computationally efficient, but has retained many important features of a real instrument. The real-time implementation has been done on a Texas Instruments TMS320C30 floating-point signal processor using a sampling rate of 44.1 kHz
Keywords :
acoustic signal processing; digital signal processing chips; electronic music; musical acoustics; musical instruments; sound reproduction; DSP implementation; Texas Instruments TMS320C30; dispersion effects; floating-point signal processor; flute model; linear filters; losses; one-dimensional wave propagation; real-time; reflection effects; semiphysical time-domain model; static memoryless nonlinearity; transmission-line; tube resonator; white noise excitation; Acoustic reflection; Digital signal processing; Dispersion; Instruments; Nonlinear filters; Propagation losses; Resonator filters; Time domain analysis; Transmission lines; White noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
ISSN :
1520-6149
Print_ISBN :
0-7803-0532-9
Type :
conf
DOI :
10.1109/ICASSP.1992.226073
Filename :
226073
Link To Document :
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