Autori: C. Oancea, C. Gheorghieș, S. Condurache-Bota
Editorial: European Journal of Science and Theology, 7(3), p.57-70, 2011.
The analysis of the sounds emitted by the new system of bells from the Saint Trinity Cathedral of Alba Iulia, Romania was performed and compared to a witness sound, by means of complex acoustic analysis programs called Wavanal and Sigview. The study of the partials influence on the amplitude, intensity and, inherently the pitch of the resulting sounds emitted by the bells system is also considered. The change in time of the partials intensity and amplitude during a bells’ ringing cycle is studied as well, by comparison with the witness sound. Rather significant differences were noticed between the recorded sound and the witness sound, even though they have the same essential musical characteristics and even though they sound alike to the human ear.
Cuvinte cheie: sound analysis, partials, church bell, sound spectrum