Audible frequencies span an enormous range of wavelength sizes.

Evidence

These two frequencies correspond to the extremes of the audio frequency range, so one can see that the range of wavelength sizes involved is very large! — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 147

Categorization

• XREF: Connects to the chapter’s worked examples of 20 Hz vs 20 kHz wavelengths (~17 m vs ~1.7 cm), a striking scale span worth remembering when visualizing sound in rooms.
• CANDY: A simple, memorable fact: audible sound wavelengths range from about 17 meters down to 1.7 centimeters — handy informal context.