AVIXA Audio 1: Essentials Exam Questions with Correct Solutions| Latest Update Graded A+
electrical noise Signal processing circuitry and cables are subject to surrounding sources of
_____.
electrical noise
mechanical fields
signal conductors
unintended signals
is a shield around the wire used as the electrical circuit's return path The second conductor
of an unbalanced circuit _____.
has the same impedance as the first signal conductor
carries an inverse image of the first signal conductor
is a shield around the wire used as the electrical circuit's return path
is an insulated wire which transports the signal
exactly the same as the original Lossless compression involves making a file _____.
with higher quality than the original
exactly the same as the original
that loses very little data
that approximates the original
1 Mbit/s A video CD has a bit rate of _____.
1 Mbit/s
20 Mbit/s
128 Kbit/s
5 Mbit/s
,on or off The digital waveform is always _____.
on or off
at high or low voltage
switching frequencies
changing amplitude
4-bit A value with 16 possible states is referred to as _____.
32-bit
4-bit
16-bit
8-bit
how many samples of an analog signal are taken in a given time interval The sampling rate is
defined as _____.
how fast an analog signal can send information
how many samples of an analog signal are taken in a given time interval
how quickly a digital signal can be sampled
how many samples of a digital signal are taken in a given time interval
states Bit depth is defined as the number of _____ you have in which to describe the value
of a digital signal
signals
rates
states
speeds
one; zero In a digital signal, the "on" state is represented by _____, and the "off" state is
represented by _____.
, one; zero
one; two
zero; one
two; one
At least twice the frequency of the signal being sampled To meet the Nyquist Rate criteria,
the sampling rate needs to be _____.
At least twice the voltage of the signal being sampled
Half the frequency of the signal being sampled
Half the voltage of the signal being sampled
At least twice the frequency of the signal being sampled
a device or program that encodes and decodes file information What is a codec?
a device or program that encodes and decodes file information
a structure of data containment
a program that holds data
a formatting system
amplitude The analog waveform has a constantly changing _____.
peak
signal frequency
spectrum
amplitude
analog Noise overcomes the signal after many generations of re-amplifications of a(n) _____
signal.
analog
low
electrical noise Signal processing circuitry and cables are subject to surrounding sources of
_____.
electrical noise
mechanical fields
signal conductors
unintended signals
is a shield around the wire used as the electrical circuit's return path The second conductor
of an unbalanced circuit _____.
has the same impedance as the first signal conductor
carries an inverse image of the first signal conductor
is a shield around the wire used as the electrical circuit's return path
is an insulated wire which transports the signal
exactly the same as the original Lossless compression involves making a file _____.
with higher quality than the original
exactly the same as the original
that loses very little data
that approximates the original
1 Mbit/s A video CD has a bit rate of _____.
1 Mbit/s
20 Mbit/s
128 Kbit/s
5 Mbit/s
,on or off The digital waveform is always _____.
on or off
at high or low voltage
switching frequencies
changing amplitude
4-bit A value with 16 possible states is referred to as _____.
32-bit
4-bit
16-bit
8-bit
how many samples of an analog signal are taken in a given time interval The sampling rate is
defined as _____.
how fast an analog signal can send information
how many samples of an analog signal are taken in a given time interval
how quickly a digital signal can be sampled
how many samples of a digital signal are taken in a given time interval
states Bit depth is defined as the number of _____ you have in which to describe the value
of a digital signal
signals
rates
states
speeds
one; zero In a digital signal, the "on" state is represented by _____, and the "off" state is
represented by _____.
, one; zero
one; two
zero; one
two; one
At least twice the frequency of the signal being sampled To meet the Nyquist Rate criteria,
the sampling rate needs to be _____.
At least twice the voltage of the signal being sampled
Half the frequency of the signal being sampled
Half the voltage of the signal being sampled
At least twice the frequency of the signal being sampled
a device or program that encodes and decodes file information What is a codec?
a device or program that encodes and decodes file information
a structure of data containment
a program that holds data
a formatting system
amplitude The analog waveform has a constantly changing _____.
peak
signal frequency
spectrum
amplitude
analog Noise overcomes the signal after many generations of re-amplifications of a(n) _____
signal.
analog
low
