7.In the term ‘Fast Fourier Transform’, ‘fast’ refers to…

a.the ability to analyze sounds outside the range of human hearing.

b.your ability to quickly evaluate integrals involving complex exponentials by hand.

c.the processor speed of the computer you are using.

d.the use of an algorithm to efficiently and quickly evaluate the Fourier coefficients.

9.Fill in the blanks: ________ refers to the time it takes a periodic event to repeat itself. ________ refers to how often a periodic event occurs.

a.frequency,    Hertz

b.Hertz,            speed

c.amplitude,    frequency

d.period,          frequency

10.A sound detector (i.e. microphone) detects

a.the frequency of air pressure oscillations.

b.the location of the origin of the detected sound.

c.the type of sound being produced.

d.the period of air speed oscillations.