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COMD 5070- Exam 1- Quiz (cont. from week 1) – Questions and Answers
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COMD 5070- Exam 1- Quiz (cont. from week 1) – Questions and Answers
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COMD 5070- Exam 1- Quiz (cont. fromweek 1) – Questions and Answers
Which of the following is an analog signal? - --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)... - --is continuous in AMPLITUDE
-is continuous in TIME
-A table full of numbers could fully represent.... - -A digital sound
-You cannot listen to digital sound via digital headphones.... - -Because the
sound is really generated by analog loudspeakers.
-Quantization refers to: - -The assignment of an analog value to the nearest
digital value available.
-An 8-bit A/D system has how many quantization levels? - -256
-The sampling theorem indicates : - -The minimum sample rate needed to
perfectly reconstruct a signal.
-Aliasing during digital recording means that.... - -A sinusoid is transformed
into a different frequency.
-Anti-aliasing filtering.... - -Removes frequency components above the
Nyquist frequency.
-Low pass filtering during DAC playback..... - -Is mandatory to eliminate the
"steps" in the analog waveform.
-A typical range of variation for fundamental frequency (F0) during reading
passages would be about: - -3 Semitones
-It is best to compute jitter in a voice: - -During steady state phonation.
-In the research literature, the voice range profile (VRP) has also been called
the: - --phonogram
-phonetogram
-F0-SPL profile
*All of the above
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