Pitch in sound is primarily determined by which property?

Pitch in sound is primarily determined by which property?

• A. Frequency
• B. Amplitude
• C. Wavelength
• D. Timbre

Answer: (A)

Pitch is the perceptual attribute that corresponds to how high or low a sound seems. It is determined by the frequency of the sound wave—the number of pressure cycles per second. A higher frequency means more rapid oscillations and a higher pitch; a lower frequency means slower oscillations and a lower pitch. Amplitude affects how loud a sound is, not its pitch. Wavelength and frequency are related through the speed of sound, but pitch tracks frequency itself. Timbre describes the quality or color of a sound, shaped by its harmonic content, which lets you tell different instruments apart even when they play the same pitch. In the ear, the basilar membrane and hair cells map different frequencies to neural signals, and the brain interprets these signals as pitch.

Pitch is the perceptual attribute that corresponds to how high or low a sound seems. It is determined by the frequency of the sound wave—the number of pressure cycles per second. A higher frequency means more rapid oscillations and a higher pitch; a lower frequency means slower oscillations and a lower pitch. Amplitude affects how loud a sound is, not its pitch. Wavelength and frequency are related through the speed of sound, but pitch tracks frequency itself. Timbre describes the quality or color of a sound, shaped by its harmonic content, which lets you tell different instruments apart even when they play the same pitch. In the ear, the basilar membrane and hair cells map different frequencies to neural signals, and the brain interprets these signals as pitch.