Title :
Time domain analysis/resynthesis of musical tones based on polynomial interpolation techniques
Author :
Hung, Roy ; Yung, N.H.C. ; Cheung, P.Y.S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
A novel algorithm employing polynomial interpolation techniques is proposed for the analysis and resynthesis of musical tones, based on time domain information. This algorithm models a single period of oscillation as a series of features, with curves joining such features together. The trajectories of these features and the shape of the curves across the whole input signal can be parameterised, such that the signal can be analysed and resynthesised as a close approximation to the original. The current research introduced an alternative approach to analyse/resynthesise sampled musical signals in the frequency domain, one which characterises a signal by its physical structure rather than its frequency components. The results from this analysis can be used to further refine existing physical models of musical instruments
Keywords :
acoustic signal processing; approximation theory; interpolation; music; musical acoustics; musical instruments; polynomials; signal sampling; signal synthesis; time-domain analysis; time-domain synthesis; algorithm; curve shape; feature trajectories; frequency domain; input signal; musical instruments; musical tones; oscillation period; physical models; polynomial interpolation techniques; sampled musical signals; time domain analysis/resynthesis; time domain information; Algorithm design and analysis; Frequency domain analysis; Information analysis; Instruments; Interpolation; Polynomials; Shape; Signal analysis; Signal processing; Time domain analysis;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.571163