Characterization of sound properties of talking drums made from Gmelina arborea wood
Keywords:music, wood culture, wood product, sound properties
Talking drum is useful for musical purpose. However, it produces a complex sound timbre, difficult to characterize. Although the wooden hourglass-shell geometry making the talking drum was identified as a factor influencing the sound timbre make-up, there is still a need to investigate other suspected factors. This study characterized sound properties of talking drums from Leather covers, force and position of play, tension on the rope, and excited surface impact. Three bolts from the base of Gmelina arborea trees were used to produce the talking drums, hence, sound properties were measured. Values obtained were subjected to descriptive statistics, graphs, and ANOVA (α0.005). Fundamental Frequency, Amplitude, and Sound Damping Time (SDT) at no tension on the rope were significantly lowest (90.06±27.16, 41.03±4.31, 380.83±103.58) for the light force of play and highest (97.00±29.68, 60.26±3.59, 474.44±59.48) for heavy force, respectively. At maximum tension on the rope, SDT of goat skin was significantly higher (478.50±77.04) than cow womb leather cover (438.89±97.65), while Amplitude and SDT were significantly higher (66.61±2.95, 508.52±51.60) for heavy force than light force of play (46.16±7.06, 408.87±92.46), respectively. Tension on the rope was the most essential factor needed in characterizing the quality sound property of the talking drums.
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