4. Distinguish between shriller and flatter sounds
Answers
Answer:
A sound having high frequency is said to be Shrill. The voice of a woman is shriller than that of a man. The voice of man having low frequency or low pitch is said to be deep or flat. As the frequency of vibration of an object increases, the pitch or shrillness of sound produced by it also increases.
Shrill can be differentiated from a flat low-pitched sound to a high-pitched sound.
Pitch of noise is the feature of sound that distinguishes an acute or strident note from a dead or flat note. The sound is described to be harsh if the pitch is high, and flat if the tone is low.
Shrill refers to a sound with a high frequency. A woman's voice is lower in pitch than a man's. A man's voice is described as deep or flat if it has a low frequency or pitch. The pitch or shrillness of sounds produced by an object increases as the excitation frequency of the thing increases.