Which of the following is an analog signal? - ANSWER--Speech sounds in air
-Musical tones in air
-Displacement of the middle ear bones
*All of the above
An analog signal (e.g. from a microphone)... - ANSWER--is continuous in AMPLITUDE
-is continuous in TIME
A table full of numbers could f...
COMD 5070- Exam 1- Quiz
(cont. from week 1)Questions
& Answers 100% Correct!!
Which of the following is an analog signal? - ANSWER--Speech sounds in air
-Musical tones in air
-Displacement of the middle ear bones
*All of the above
An analog signal (e.g. from a microphone)... - ANSWER--is continuous in AMPLITUDE
-is continuous in TIME
A table full of numbers could fully represent.... - ANSWER-A digital sound
You cannot listen to digital sound via digital headphones.... - ANSWER-Because the sound is really
generated by analog loudspeakers.
Quantization refers to: - ANSWER-The assignment of an analog value to the nearest digital value
available.
An 8-bit A/D system has how many quantization levels? - ANSWER-256
The sampling theorem indicates : - ANSWER-The minimum sample rate needed to perfectly
reconstruct a signal.
Aliasing during digital recording means that.... - ANSWER-A sinusoid is transformed into a different
frequency.
Anti-aliasing filtering.... - ANSWER-Removes frequency components above the Nyquist frequency.
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