I took a look at some bird songs in RavenLite, and when I saw this in the "twee!" syllable of Pine Siskin song, I realized something interesting was going on. Not only were there two independent signals, the melodies were going in opposite directions, and the composition led to a great deal of harmonics. The most interesting thing is the way you can tell that they are harmonics: the slopes of the lines increase geometrically as they increase in frequency, causing what looks to be an exponential increase.
Who says songbirds aren't fascinating?!
Friday, June 05, 2009
Subscribe to:
Posts (Atom)