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Upper midrange · Frequency

2,600 Hz tone

Play a 2,600 Hz tone online, see what note it is, how long its wave is and which animals can hear it. It is a bright, penetrating tone in the region where human hearing is most sensitive – the reason alarms, whistles and baby cries live here.

2600.0Hz

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385 µsPeriod (one cycle)
13.2 cmWavelength in air (20 °C)
E7-24¢Nearest note (A4 = 440 Hz)
YesAudible to humans

What does 2,600 Hz sound like?

2,600 Hz is a upper midrange frequency. It is a bright, penetrating tone in the region where human hearing is most sensitive – the reason alarms, whistles and baby cries live here.

A 2,600 Hz sound wave completes 2,600 cycles every second, so one cycle lasts 385 µs. In air at 20 °C, where sound travels at about 343 m/s, each wave is 13.2 cm (5.19 in) long; in water it stretches to 57.0 cm because sound moves about 4.3 times faster there.

Musically, 2,600 Hz is 24 cents below E7 (2.637 kHz) in standard A440 tuning. Doubling it to 5,200 Hz raises the pitch by one octave; halving it to 1,300 Hz lowers it by one.

The supervisory tone of the old Bell System long-distance network. 'Phone phreaks' discovered they could seize trunk lines with it – famously using a toy whistle from a cereal box.

Wavelength of 2,600 Hz in different materials

MediumSpeed of soundWavelength
Air (20 °C)343 m/s13.2 cm
Fresh water1,481 m/s57.0 cm
Seawater1,500 m/s57.7 cm
Helium1,007 m/s38.7 cm
Steel5,960 m/s2.29 m
Glass5,640 m/s2.17 m

Harmonics and octaves

Real instruments playing 2,600 Hz also produce harmonics at whole-number multiples of the fundamental. Their relative strength gives each instrument its timbre.

HarmonicFrequencyNearest note
1× (fundamental)2.6 kHzE7
2×5.2 kHzE8
3×7.8 kHzB8
4×10.4 kHz–
5×13 kHz–
6×15.6 kHz–
7×18.2 kHz–
8×20.8 kHzultrasonic

Which animals can hear 2,600 Hz?

Instruments and voices that can play 2,600 Hz

Frequently asked questions

What does 2,600 Hz sound like?

It is a bright, penetrating tone in the region where human hearing is most sensitive – the reason alarms, whistles and baby cries live here.

Can humans hear 2,600 Hz?

Yes. 2,600 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.

What musical note is 2,600 Hz?

2,600 Hz is 24 cents below E7, which is 2.637 kHz in standard A440 tuning.

What is the wavelength of 2,600 Hz?

About 13.2 cm in air at 20 °C and 57.0 cm in water.

Can dogs hear 2,600 Hz?

Yes – dogs hear roughly 67 Hz to 45,000 Hz.