Transmission is defined as sound energy that is _____.
reflected through a partition
not reflected or absorbed
absorbed and reflected
remaining in the space - not reflected or absorbed
Given the same reference sound input level into two different microphones, the more sensitive
microphone wou...
AVIXA Audio 1: Essentials
Transmission is defined as sound energy that is _____.
reflected through a partition
not reflected or absorbed
absorbed and reflected
remaining in the space - not reflected or absorbed
Given the same reference sound input level into two different microphones, the more sensitive
microphone would provide _____.
A higher electrical output
Higher converted acoustical energy
A lower electrical output
Lower converted acoustical energy - A higher electrical output
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 - the whole number multiples of a
fundamental 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 - 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 - 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 - +/-3 dB
If you go up one octave from 250 Hz, you arrive at _____.
1250 Hz
125 Hz
500 Hz
251 Hz - 500 Hz
0 dB SPL describes:
the threshold of human hearing
the threshold of pain
ambient noise level
normal listening level - the threshold of human hearing
What is the measurement for frequency?
Wavelength
DC
, Hertz
AC - Hertz
Wavelength and frequency determine the __________ of sound, while amplitude determines the
__________.
Pitch; volume
Volume; speed
Volume; tone
Speed; tone - 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. - Physical distance between two points of
a waveform that are exactly one cycle apart.
Complex waveforms can be broken down into _____.
individual sine waves
varying proportional energy levels
simple waveforms
wavelengths and frequencies - individual sine waves
Sound _____ through a medium.
resounds
processes
propagates
generates - propagates
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R145,34. You're not tied to anything after your purchase.
