Análise espectral aplicada a um estudo comparativo do efeito de diferentes surdinas no violino

Abstract

This paper describes a pilot study of the effects produced on the violin sound by using three different mutes. Digital spectral analysis was used as a tool to measure the changes generated in the sound spectrum (variation in the intensity of harmonic partials) of the four loose strings of the instrument with and without the use of the three mutes. From the perceived effects on the sound and its objectified description by spectral analysis, the relationship between such changes with the known operation of the bridge, an essential piece in the instrument's timbre composition, is explored, rising issues subjected to future studies, such as the objective description of timbre, understanding how the physical characteristics of the mute will determine its effect on the sound of the instrument from the change in the normal stand vibration and the use of the study of such variations as a means to increase knowledge about the sound operation of the instrument.