PHYS 305 Lecture Notes - Lecture 7: Musical Tone, Hearing Range, Spectrogram
16 Oct 2018
School
Department
Course
Professor
Document Summary
Where you should be by now: done with everything from weeks 1-6, be working on schedule for week 7. Instructions 8, experiment 4: spectogram and spectogram slice; study johnston pg. 87-101), raven spectra instructions, figures 8 (cello) and 8. 1 (violin: topic: spectra, books and software johnston, audacity, raven, course mat. Page: microphone, plastic water bottle(s, midterm exam available two weeks from friday (oct 26) Topics for today: units, experiment 3, spectra: spectogram and spectogram slice, experiment 4: spectogram and spectogram slice, assignments. Experiment 3 synthesis to analysis: verify that your input should match your output . 100hz 1st harmonic in = 100hz square wave out. Proof of broader concept: harmonics periodic wave/fundamental frequency. You are demonstrating what fourier said: determination of frequency & wave length. F = 1 / t = 1 / (seconds per cycle) = fund. L = v / f = (feet/second) / (cycles/second)
