Abstract
Forty high-resolution (3480 × 2160) video presentations were created in an attempt to replace in-person demonstrations for teaching elementary musical acoustics. Demonstrations were selected to accompany the author's textbook, Principles of Musical Acoustics (W. M. Hartmann, Springer, NY, 2013). Mean duration of the demonstrations was 4.1 min, though one was as long as 17 min while another lasted only 30 s. Demonstrations were devoted to physical principles of vibrations and waves (13), musical instruments and other sound making devices (20), and signal processing (3). Electronic instrumentation appeared somehow in almost all the demonstrations with (4) devoted specifically to instrumentation itself. Attempts were made to evaluate the effectiveness of the demonstrations through questions on the weekly quizzes. In any case, the demonstrations provided a welcome relief from a straightforward power-point lecture. A second form of relief presented some topics, especially mathematical topics, using pen and paper together with a document camera. Evaluations of the methods will be complete before the June meeting.
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