Question: Generate and play back a sinusoidal signal using t = 0: 1/22,050: 2; y = sin (2 * pi * 400 * t); sound (y,

Generate and play back a sinusoidal signal using

t = 0: 1/22,050: 2;

y = sin (2 * pi * 400 * t);

sound (y, 22050);

(a) What is the significance of 22,050?

(b) How long will this sound be, and how many samples will there be?

(c) Repeat the sound playback using a sample rate of 8,000 Hz (samples/second)

and then at 44,100 Hz. What do you notice? Can this be explained?

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