@proceedings {2650, title = {Variable Fractional Delay Filters in Bandlimited Oscillator Algorithms for Music Synthesis}, journal = {the 2010 International Conference on Green Circuits and Systems (ICGCS2010)}, year = {2010}, note = {\ }, month = {06/2010}, address = {Shanghai, China}, abstract = {Trivially sampled geometric waveforms such as the\ 
rectangular pulse wave used in subtractive sound synthesis suffer\ 
from aliasing caused by the discontinuities in the waveform or its\ 
derivative. Several algorithms for the reduction of aliasing dis-\ 
tortion have been suggested, providing either complete removal\ 
or great suppression of aliasing. Some antialiasing oscillators\ 
utilize variable fractional delay filters as an essential part of\ 
the algorithm. In this paper, these oscillators are reviewed with\ 
an emphasis on motivating the use of the fractional delay filters.
}, keywords = {Antialiasing, fractional-delay filter, oscillators, virtual analog}, author = {Jussi Pekonen and Vesa V{\"a}lim{\"a}ki and Juhan Nam and Jonathan Abel and Julius O. Smith} }