Sounds and the associated frequency

f (kHz)	device, event, phenomena, process
25–80	bat sonar clicks
40–50	ultrasonic cleaning
32.768	quartz timing crystal
18–20	upper limit of human hearing
4–5	field cricket (Teleogryllus oceanicus)
2.2–2.8	clapping
2–5	maximum sensitivity of the human hear
f (Hz)	device, event, phenomena, process
300–3000	voice frequency (VF), important for understanding speech
2048	C7 scientific scale, highest note of a soprano singer (approximate)
440	A4 american standard pitch, tv test pattern tone
435	A4 international pitch
426.67	A4 scientific scale
261.63	C4 american standard pitch
258.65	C4 international pitch
256	C4 scientific scale, typical fundamental frequency for female vocal cords
128	C3 scientific scale, typical fundamental frequency for male vocal cords
64	C2 scientific scale, lowest note of a bass singer (approximate)
90	ruby-throated hummingbird in flight
60	alternating current hum (US and Japan)
50	alternating current hum (Europe)
8–20	lower limit of human hearing
17–30	blue and fin wales are the loudest marine sounds in this range
1–5	tornadoes

Associated link