Question

what are the characteristics of sound? Define them

Answer 1

A sound can be characterized by the following three quantities:

(i) Pitch.

(ii) Quality.

(iii) Loudness.

Pitch is the frequency of a sound as perceived by human ear. A high frequency gives rise to a high pitch note and a low frequency produces a low pitch note. Figure 2 shows the frequencies of same common sounds.


A pure tone is the sound of only one frequency, such as that given by a tuning fork or electronic signal generator.

The fundamental note has the greatest amplitude and is heard predominantly because it has a larger intensity. The other frequencies such as 2fo, 3fo, 4fo, ............. are called overtones or harmonics and they determine the quality of the sound.

Loudness is a physiological sensation. It depends mainly on sound pressure but also on the spectrum of the harmonics and the physical duration.

Answer 2

Characteristics of Sound
There are three characteristics of sound.
1.Loudness
2.Pitch
3.Quality/timbre

Loudness
It is the characteristic of the sound by which a loud sound can be distinguished from a soft sound. Loudness depends on the intensity of sound near the ear. It is the measure of ear's response to the vibration.

Pitch
Pitch of a sound depends upon the frequency of the sound recorded by the human. If the frequency of a vibrating object is low then the pitch of sound is said to be low and vice versa

Quality/Tibre
It is that characteristic if sound which enables us to distinguish between the sounds if same loudness and pitch. Quality of a sound depends on wave form of the sound.

-Ekansh Nimbalkar