Just-noticeable difference

English Wikipedia has an article on:

Just-noticeable difference #Music production applications

The just-noticeable difference (JND) is an estimation of the smallest interval that can be distinguished by an average listener.

The melodic JND is commonly given as:

• 10 ¢ (Wikipedia: Just-noticeable difference #Music production applications)
• 6 ¢ (H-System)
• 3.5 ¢ (Unnoticeable commas vs. Small commas)

The harmonic JND is much smaller because it becomes possible to discern beat frequencies.

See also

• Human hearing range