What is the perceptual correlate of amplitude?

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Multiple Choice

What is the perceptual correlate of amplitude?

Explanation:
Amplitude is the strength of the pressure variation in a sound wave, and that physical energy is what our ears interpret as how loud a sound seems. So, the perceptual correlate of amplitude is loudness—the subjective sense of intensity. Pitch relates to frequency (how high or low a sound is); shimmer reflects cycle-to-cycle amplitude variation in voice; and HNR measures the ratio of harmonics to noise, a voice-quality factor, not overall loudness.

Amplitude is the strength of the pressure variation in a sound wave, and that physical energy is what our ears interpret as how loud a sound seems. So, the perceptual correlate of amplitude is loudness—the subjective sense of intensity. Pitch relates to frequency (how high or low a sound is); shimmer reflects cycle-to-cycle amplitude variation in voice; and HNR measures the ratio of harmonics to noise, a voice-quality factor, not overall loudness.

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