Question

What is the pitch of a sound?

Answer 1

Pitch is a perceptual property ofsounds that allows their ordering on a frequency-related scale, or more commonly, pitch is the quality that makes it possible to judge sounds as "higher" and "lower" in the sense associated with musical melodies.
Pitch can be taken as the measure of sound frequency expressed in terms of Hertz. Higher the frequency, higher the pitch. All kinds of sound produces some waves that are measured with respect to the frequency it carries. Pitch can also be expressed as the position of a musical note in a musical scale. So note in the lower side is a low pitch sound and vice versa.

Following points may be noted:

1. Each musical note has an unique frequency hence each having different Pitch. This differentiate the nature of sound between Keys.
2. There are 7 ( 12 with sharp & Flats) different sounds due to seven different frequencies and if arranged in ascending order the pitch will be rising when we progress from a low key to high.
3. On eighth note of each key the frequency gets doubled. The result is increase in Pitch but without changing the nature of sound. This is called change in Octave.
4. Every higher octave will carry relatively higher pitch and frequency which are twice the frequencies of the immediately preceding Octave.