The Researchers Studying Whether 3-D-Printing Musical Devices Produce Better Sound Than Traditional Instruments
The research of acoustics can assist scientists in producing lovely music even with musical devices fashioned with high-tech methods, such as 3-D printing. Xiaoyu Niu, from the University of Chinese Academy Sciences, and different researchers studied the high sound quality of a three-D-printed ukulele and compared it to a typical wooden instrument.
Niu will current the group’s results in a talk, “A Comparison on Sound Quality of PLA 3-D Printing Ukulele and Single Board Wooden Ukulele,” on the 178th Meeting of the Acoustical Society of America, which shall be held Dec. 2-6, in the Hotel del Coronado in San Diego.
The ukulele that was studied by Niu’s group was created with a 3-D printer utilizing a kind of plastic often known as polylactic acid, or PLA. This substance has to turn out to be quite popular for producing 3-D-printed objects, for the reason that printing will be achieved at low temperatures.
Niu discovered below the same plucking power; the wood ukulele was louder than the 3-D-printed one. The investigators additionally discovered the timbre of the two instruments was completely different. The wooden instrument exhibited extra excessive-frequency vibrations than the 3-D-printed ukulele.
We discovered that the A-weighted sound pressure of the 3-D-printed instrument was lower than that of the wooden one,” Niu stated. A-weighting is used to account for the relative loudness of low frequency sounds perceived by the human ear.
To clarify these variations, the investigators carried out computer calculations utilizing a software package referred to as COMSOL. They first modeled the ukulele shape mathematically. Using formulation for sound resonance and acoustics, they have been in a position to clarify the variations between a regular picket ukulele and the new high-tech 3-D-printed model.