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Question
Which of the above two graphs (a) and (b) representing the human voice is likely to be the male voice ? Give a reason for your answer.
Which of the above two graphs (a) and (b) representing the human voice is likely to be the male voice ? Give a reason for your answer.
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Solution
The correct option is D A
The two vocal properties are intensity (loudness) and frequency (pitch). Pitch of a man's voice fall under low frequency, whereas woman's voice is of the high pitch type. Pitch and intensity are proportional to each other. As seen in the graph given, we can compare the intensities of male and female voice. Female's voice has more frequency components marked as 'b' compared to men which is marked as 'a'. Women speak at one octave higher than men.
Hence, the wave 'a' represents a male voice.
The two vocal properties are intensity (loudness) and frequency (pitch). Pitch of a man's voice fall under low frequency, whereas woman's voice is of the high pitch type. Pitch and intensity are proportional to each other. As seen in the graph given, we can compare the intensities of male and female voice. Female's voice has more frequency components marked as 'b' compared to men which is marked as 'a'. Women speak at one octave higher than men.
Hence, the wave 'a' represents a male voice.
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