Question

what do you mean by loudness and pitch of sound. how are they affected?​

Answer 1

Explanation:

here here is your answer found it on Google because I was too lazy to write it by myself

Answer 2

Answer:

Loudness of Sound:-

• This phenomenon of a sound depending on the amplitude of the sound wave. If the amplitude of the sound wave is large, then the sound is said to be loud.
• It is directly proportional to the square of the amplitude of vibration. If the amplitude of the sound wave becomes double, then the loudness of the sound will be quadrupled.
• It is expressed in decibel (dB).
• Sounds above 80 dB becomes noise to human ears.

The loudness of a sound wave is determined by its association with the amplitude, all types of waves have a certain amplitude. For example, a height of a wave on a calm ocean will be less than 1 foot whereas good surfing waves might be 10 feet or more in amplitude. During a storm, the amplitude might increase to 40 to 50 feet.

Pitch of Sound :-

• This depends on the frequency of vibration of the waves.
• If the frequency of vibration is higher, we say that the sound is shrill and has a high pitch. On the other hand, if the sound is said to have a lower pitch then it has a lower frequency of vibration.
• A bird produces high-pitched sound whereas roaring of a lion is a low-pitched sound.

The Voice of a woman has a high pitch than that of a man.

Difference between Pitch and Loudness:-

These two phenomena seem to be the same sometimes, but they are not exactly the same. They differ on the basis of their tone quality. The pitch of a sound is our ear’s response to the frequency of sound. Whereas loudness depends on the energy of the wave. In general, the pitch is the reason behind the difference in voice quality of different individuals.

loudness :-

1) Loudness is defined as the property of sound which is used for differentiating between the loud and faint sound.

2) Loudness is dependent on the energy received by the ear in unit time.

3) Loudness is independent of the change in frequency.

pitch :-

1) Pitch is defined as the characteristic of sound which is used for differentiating between the shrill and flat sound.

2) Pitch is independent of the energy received by the ear in unit time.

3) Pitch is dependent on the change in the frequency. As the frequency increases, the shrillness of the sound increases.

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