©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
AVIXA Audio 1: Essentials Exam Questions
With Correct Answers
An octave is _____.
a doubling of amplitude
an eighth of a frequency
an eighth of amplitude
a doubling of frequency - answer✔✔a doubling of frequency
If a sound has a pressure of 10 dB SPL at a distance of 10 m, how much pressure would the
sound have at a distance of 5 m?
16 dB SPL
20 dB SPL
4 dB SPL
5 dB SPL - answer✔✔16 dB SPL
Through the Inverse Square Law, the spread of energy that is propagated can be followed _____.
only horizontally
vertically and horizontally
only spherically
spherically and horizontally - answer✔✔spherically and horizontally
A "just noticeable" change in sound pressure level, either louder or softer, requires a _____
change.
+/-10 dB
+/-1 dB
+/-3 dB
+/-6 dB - answer✔✔+/-3 dB
, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
If you go up one octave from 250 Hz, you arrive at _____.
1250 Hz
125 Hz
500 Hz
251 Hz - answer✔✔500 Hz
0 dB SPL describes:
the threshold of human hearing
the threshold of pain
ambient noise level
normal listening level - answer✔✔the threshold of human hearing
What is the measurement for frequency?
Wavelength
DC
Hertz
AC - answer✔✔Hertz
Wavelength and frequency determine the __________ of sound, while amplitude determines the
__________.
Pitch; volume
Volume; speed
Volume; tone
Speed; tone - answer✔✔Pitch; volume
Wavelength is the __________.
Cycle when molecules move from rest through compression to rest and rarefaction.
Physical distance between two points of a waveform that are exactly one cycle apart.
Number of times a wavelength cycle occurs per second.
Intensity or loudness of a sound in a particular medium. - answer✔✔Physical distance between
two points of a waveform that are exactly one cycle apart.
, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
Harmonics are _____.
the particular make-up of complex waveforms
varying proportional energy levels of a fundamental frequency
the whole number multiples of a fundamental frequency
the whole number multiples of individual sine waves - answer✔✔the whole number multiples of
a fundamental frequency
Complex waveforms can be broken down into _____.
individual sine waves
varying proportional energy levels
simple waveforms
wavelengths and frequencies - answer✔✔individual sine waves
Sound _____ through a medium.
resounds
processes
propagates
generates - answer✔✔propagates
Because air is a(n) _____ medium, vibrated molecules transmit motion to the molecules
surrounding them.
elastic
dry
invisible
expandable - answer✔✔elastic
The "audio" portion of "audiovisual" refers to _____.
the method of presentation
the environment for display
sound
the audience - answer✔✔sound
AVIXA Audio 1: Essentials Exam Questions
With Correct Answers
An octave is _____.
a doubling of amplitude
an eighth of a frequency
an eighth of amplitude
a doubling of frequency - answer✔✔a doubling of frequency
If a sound has a pressure of 10 dB SPL at a distance of 10 m, how much pressure would the
sound have at a distance of 5 m?
16 dB SPL
20 dB SPL
4 dB SPL
5 dB SPL - answer✔✔16 dB SPL
Through the Inverse Square Law, the spread of energy that is propagated can be followed _____.
only horizontally
vertically and horizontally
only spherically
spherically and horizontally - answer✔✔spherically and horizontally
A "just noticeable" change in sound pressure level, either louder or softer, requires a _____
change.
+/-10 dB
+/-1 dB
+/-3 dB
+/-6 dB - answer✔✔+/-3 dB
, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
If you go up one octave from 250 Hz, you arrive at _____.
1250 Hz
125 Hz
500 Hz
251 Hz - answer✔✔500 Hz
0 dB SPL describes:
the threshold of human hearing
the threshold of pain
ambient noise level
normal listening level - answer✔✔the threshold of human hearing
What is the measurement for frequency?
Wavelength
DC
Hertz
AC - answer✔✔Hertz
Wavelength and frequency determine the __________ of sound, while amplitude determines the
__________.
Pitch; volume
Volume; speed
Volume; tone
Speed; tone - answer✔✔Pitch; volume
Wavelength is the __________.
Cycle when molecules move from rest through compression to rest and rarefaction.
Physical distance between two points of a waveform that are exactly one cycle apart.
Number of times a wavelength cycle occurs per second.
Intensity or loudness of a sound in a particular medium. - answer✔✔Physical distance between
two points of a waveform that are exactly one cycle apart.
, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/27/2024 12:01 PM
Harmonics are _____.
the particular make-up of complex waveforms
varying proportional energy levels of a fundamental frequency
the whole number multiples of a fundamental frequency
the whole number multiples of individual sine waves - answer✔✔the whole number multiples of
a fundamental frequency
Complex waveforms can be broken down into _____.
individual sine waves
varying proportional energy levels
simple waveforms
wavelengths and frequencies - answer✔✔individual sine waves
Sound _____ through a medium.
resounds
processes
propagates
generates - answer✔✔propagates
Because air is a(n) _____ medium, vibrated molecules transmit motion to the molecules
surrounding them.
elastic
dry
invisible
expandable - answer✔✔elastic
The "audio" portion of "audiovisual" refers to _____.
the method of presentation
the environment for display
sound
the audience - answer✔✔sound
