EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
An octave is _____.
a doubling of amplitude
an eighth of a frequency
an eighth of amplitude
a doubling of frequency CORRECT ANS-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 CORRECT ANS-16 dB SPL
Through the Inverse Square Law, the spread of energy that is propagated can be followed
_____.
only horizontally
vertically and horizontally
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
only spherically
spherically and horizontally CORRECT ANS-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 CORRECT ANS-+/-3 dB
If you go up one octave from 250 Hz, you arrive at _____.
1250 Hz
125 Hz
500 Hz
251 Hz CORRECT ANS-500 Hz
0 dB SPL describes:
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
the threshold of human hearing
the threshold of pain
ambient noise level
normal listening level CORRECT ANS-the threshold of human hearing
What is the measurement for frequency?
Wavelength
DC
Hertz
AC CORRECT ANS-Hertz
Wavelength and frequency determine the __________ of sound, while amplitude determines
the __________.
Pitch; volume
Volume; speed
Volume; tone
Speed; tone CORRECT ANS-Pitch; volume
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
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. CORRECT ANS-Physical distance
between two points of a waveform that are exactly one cycle apart.
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 CORRECT ANS-the whole number
multiples of a fundamental frequency
Complex waveforms can be broken down into _____.
individual sine waves
Solutions
An octave is _____.
a doubling of amplitude
an eighth of a frequency
an eighth of amplitude
a doubling of frequency CORRECT ANS-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 CORRECT ANS-16 dB SPL
Through the Inverse Square Law, the spread of energy that is propagated can be followed
_____.
only horizontally
vertically and horizontally
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
only spherically
spherically and horizontally CORRECT ANS-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 CORRECT ANS-+/-3 dB
If you go up one octave from 250 Hz, you arrive at _____.
1250 Hz
125 Hz
500 Hz
251 Hz CORRECT ANS-500 Hz
0 dB SPL describes:
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
the threshold of human hearing
the threshold of pain
ambient noise level
normal listening level CORRECT ANS-the threshold of human hearing
What is the measurement for frequency?
Wavelength
DC
Hertz
AC CORRECT ANS-Hertz
Wavelength and frequency determine the __________ of sound, while amplitude determines
the __________.
Pitch; volume
Volume; speed
Volume; tone
Speed; tone CORRECT ANS-Pitch; volume
, EXAM: AVIXA Audio 1: Essentials Exam with Complete
Solutions
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. CORRECT ANS-Physical distance
between two points of a waveform that are exactly one cycle apart.
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 CORRECT ANS-the whole number
multiples of a fundamental frequency
Complex waveforms can be broken down into _____.
individual sine waves
