Paper Presentation & Seminar Topics: SUBTRACTIVE SYNTHESIS OF VIOLIN SOUND


Abstract : (Seminar) This paper will deal with subtractive synthesis is a sound synthesis technique, became popular of its analog synthesizers. The principle behind this technique is to approximate the spectrum of the desired sound by subtracting all the “nondesired" components from a “spectrally rich" sound source. It dicusses about source, filter and amplifier. Source should be a sawtooth to avoid excessive non-linear harmonic frequencies. The filter approximates the response of a violin’s body to the forces in the bridge. In source side discusses about band limited sawtooth and vibrato effect. In filter side it discusses about second order equlizer filter. The last step is to envelop shaping which will discuss “ADSR” pattern. The final output is the product of the filter output and envelope shaping function.