Khaen sound synthesis using a subtractive method

Abstract

This article presents a khaen sound synthesis using subtractive method with presumed input signal. The presumed signal was sawtooth wave which contains strong harmonics at low frequency and rolled-off harmonics at high frequency. This allows a lower order filter design. The subtractive filters were 50^th order infinite impulse response (IIR) filters designed from 8191^st order finite impulse response (FIR) filters impulse responses, which were designed based on different between magnitude spectrum of the target sounds and that of the corresponding sawtooth wave. A realtime implementation on Csound was also presented. The quality of the synthesized sound still needs improvement.