How many octaves are there from 20Hz-20kHz? | Easy Ear Training

How many octaves are there from 20Hz-20kHz?

The human hearing range is generally taken as being 20 Hertz to 20kHz, and so musicians might wonder:

How many octaves is that?

The answer: 10.

Sound frequency doubles with each octave, so if we start from the lowest audible C note, “C0”, that’s at 16.35Hz. Note that’s even lower than the lowest note on a piano and just a smidge below the limit of the “official” human hearing range.

Then middle C is four octaves up, at “C4” or 261.63Hz – which you can find just by doubling 16.35 four times. Continuing to double, octave-by-octave, you eventually reach “C8” (the highest C on a piano) at 4186.01Hz or about 4.2kHz.

Finally you start approaching the limits of the human hearing range with “C10”, at 16744.04Hz or 16.7kHz, 10 octaves above our starting note.

To learn more about note frequencies and frequency bands read the Frequency Fundamentals series.

Similar questions answered on this page:

  • How many frequency bands are there?
  • How many octaves are there?
  • How many octaves does an EQ have?
  • Why does a 10-band EQ have 10 bands?

Want to become more musical?

Musicality ChecklistWe can help!

Whether you want to sing in tune, play by ear, improvise, write your own songs, perform more confidently or just make faster progress, first you need to know where you’re starting from.

The Musicality Checklist will quickly reveal your personal musicality profile and how you can improve your natural musicianship.

Available FREE today!

Get the Checklist

Ear Training at Musical U

Learn More at Musical U

Musical U is the all-in-one training website which helps you to become more musical in an easy, fun and personalised way.

→ Learn More

Have a comment about this post? We’d love to hear it!
Come join the conversation on our Facebook page.

Enjoyed this post? Please share it with a friend:

Posted in: Audio Frequencies

Pin It on Pinterest

Share This