Presentation on theme: "Inquiry-Based Labs in Musical Acoustics M. S. Pettersen Washington & Jefferson College."— Presentation transcript:
Inquiry-Based Labs in Musical Acoustics M. S. Pettersen Washington & Jefferson College
“Good Vibrations:” a course in musical acoustics for non-majors Goal: bring active learning into a class for non- science majors Studies show active learning methods are more effective (Laws; McDermott; Redish and Steinberg; Birk and Foster; etc.). –Students see and hear phenomena for themselves. The best way to learn about science is to practice it –It’s fun, too!
… which implies that the course should: Include the old-fashioned kind of experiments that students can see, hear, feel Alternate bench-top experiments with measurements of real instruments, acoustics of campus auditoriums, etc. –Using Vernier Software’s Logger Pro –Using free software from the internet Incorporate music listening
Differences among the woodwinds Clarinet: odd overtones only (one end open, one end closed) Saxophone: particularly strong second harmonic Flute: almost pure fundamental
Auditorium acoustics Reverberation time is about 1 s
New-fangled experiments using software; Electronic music Fourier synthesizer Java applet Spectrogram software Software synthesizer (electronic instruments).mp3 compression with MediaMonkey Signal processing and sound editing with Audacity