The code does explicitly assign a frequency of 440 Hz to the parameter rate in the first case and 110, 220, 440 Hz in the second. The second, fractal noise example might have been more interesting to compare to the first one if the author had kept the "fundamental" at 440 Hz and added higher-frequency overtones.
Comments
The code does explicitly assign a frequency of 440 Hz to the parameter rate in the first case and 110, 220, 440 Hz in the second. The second, fractal noise example might have been more interesting to compare to the first one if the author had kept the "fundamental" at 440 Hz and added higher-frequency overtones.