Model this note with the sine function, assuming that the amplitude is 1 and the phase shift is 0. Write the function in terms of x.

Question

Sounds are how we perceive pressure waves in the air. The note F-sharp, directly below the note 'middle C', is a sound wave with an ordinary frequency* f=220 Hertz or cycles/sec.

Model this note with the sine function, assuming that the amplitude is 1 and the phase shift is 0. Write the function in terms of x.

*This frequency is based on the just-intonation scale. The frequency based on the equal tempered scale would be f=220

Answer 1

The full standard form of a wave is Asin(2πft+ φ₀)

In this case A is 1 which is not meaningful. It should be some ΔP max for a sound wave.

f is 220 s^-1 and Φ₀ is zero.