Aband director instructs students to play a pitch louder. how will the sound wave change when the band plays the same pitch louder? will the speed , frequency , wavelength or amplitude increase ?

Increasing the loudness of the sound is directly affected by the amplitude of the wave. If the amplitude or the height of the sound waves is increased, the sound is louder or has a high intensity. Speed, frequency and wavelength are interrelated with wave properties, with a direct proportional relationship. These properties affect the pitch of a sound.

The answer is 4 i don't know if its right let me see.

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