As a warmup to the next module, we're going to listen as a class and come up with what we think are the sinusoids which are half as loud and a quarter as loud as others. We'll vote on this as a class.
Sinusoids
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Exercise 2: Loudness vs Frequency
You may have noticed by now that the chirps appear to get louder the higher we go in frequency. This is because we don't perceive loudness at a constant rate in pitch.