COMD 5070 Rosen and Howell quiz 1 With 100% Correct Answers
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Course
COMD 5070
Institution
COMD 5070
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 - ANSWER-is continuous in amplitude
is continuous in time
a table of numbers could fully represent - ANSWER-a digital sig...
COMD 5070 Rosen and Howell quiz 1 With 100%
Correct Answers
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 - ANSWER-is continuous in amplitude
is continuous in time
a table of numbers could fully represent - ANSWER-a digital signal
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
he 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
low-pass filtering during DAC playback - ANSWER-is mandatory to eliminate the 'steps'
in the analog waveform
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