Ring Modulation and Auto-Convolution

Question 1

In modulation a parameter of the __________ is systematically varied according to the waveform of the _________

Answer 1

carrier signal, program signal

Question 2

Any individual modulator has at least ______________ input(s) and __________ output signal(s)

Answer 2

two, one

Question 3

The modulating frequency is __________ present in any type of modulation

Answer 3

never

Question 4

The carrier frequency is present in ____ and _____, but not in ___________

Answer 4

AM, FM, Ring Modulation

Question 5

In Ring Modulation with a sine-wave carrier C and a sine-wave modulator M, which frequencies are always present in the output spectrum

Answer 5

C+M, C-M

Question 6

In Ring Modulation, if M = 2C what is the output spectrum

Answer 6

C, 3C

Question 7

_______ are the frequency components produced by modulations above 20 Hz

Answer 7

sidebands

Question 8

When the modulating signal is much higher than the carrier frequency in ring modulation, the output is ________ than the carrier

Answer 8

much higher than

Question 9

Convolving a sound with itself emphasizes the ________ frequencies in the sound, minimizes the ________ ones, and ________ the length of the resulting output

Answer 9

strongest, weaker, doubles

Question 10

Convolving two signals multiplies their ________, whereas ring modulating them multiplies their ________

Answer 10

spectra, waveforms