YAPISAL KARAKTERİSTİKLERE BAĞLI OLARAK DERİDE MÜZİKSEL SESİN ANALİZİ

Abstract

In this thesis, the effects of structural features on quality of musical sound wereinvestigated. In the project, 12 different heads were prepared for percussion. Theproperties of the quality sound as a sound-wave were evaluated so as to investigatethe effects of mechanical and structural properties on sound. In order to obtain thepure vibrations of skins, a Mechanical Streching Aparattus (MGD) was developed. Byusing the microphone and accelerometer, sounds had been recorded from headsthat streched on MGD. By using computer software, the time-dependant changesseen in the wave forms of the voice-recordings were subjected to two and threedimensional researches in attack, sustain and decay processes. According to theanalysis, it is understood that the concord and the corelative ratios of the basicharmonics and the frequencies of the regular progress and voices samples in thesignal graphics are an important factor for the sound quality. In this respect; it isdetermined that the voice samples for the Heads no. 6., 5. and 7 are relatively well.However, it is detected that the differences of the musical voice samples in respectto quality properties are the result of the excessiveness of structurally vibratingelements and this leads to some complicated vibes.