ASLP 3030 Exam 2 Study Questions with Complete Solutions Already Passed
0 view 0 purchase
Course
ASLP
Institution
ASLP
ASLP 3030 Exam 2 Study Questions with
Complete Solutions Already Passed
What is decibel scale? - a logarithmic scale
Why do we use a logarithmic scale for a decibel scale?
when intensity ratio doubles, dBs increase by 3 dB; intensity ratio increase
by 10, dB increase by 10 - expressing sound i...
Why do we use a logarithmic scale for a decibel scale?
when intensity ratio doubles, dBs increase by 3 dB; intensity ratio increase
by 10, dB increase by 10 - ✔✔expressing sound intensity or sound
pressure
The db scale - ✔✔dB = Px/Pr
db IL scale - ✔✔denotes a standardized reference (10^-12 watts/m^2).
Reference intensity is always standardized reference. 0dB is the reference
intensity.
db SPL scale - ✔✔intensity = Pressure^2
when pressure ratio doubles, dB increase by 6 dB...reciprocal is true as
well. pressure ratio increases by a power of 10, dB increase by
20...reciprocal is true as well
db HL scale - ✔✔audiogram
, Formula to calculate db IL - ✔✔dB = 10Log⬇️10 1x/1r; 4:1 > 10Log⬇️10 (4/1)
= 6 dB
Formula to calculate db SPL - ✔✔dB SPL = 20Log⬇️10 Px/Pr; 2:1 >
20Log⬇️10 (2/1) =6 dB
Inverse Square Law - decibels - ✔✔used to show how sound propagates
SPLnew = SPLref + (20 × Log rRef/rNew)
each time the distance from a sound source is doubled, SPL increases by 6
dB.
Scientific notation - ✔✔
Metric prefixes - ✔✔
How do low pass vs. high pass filters differ? - ✔✔low-pass filters pass all
frequencies below a particuilar value and high-pass pass all frequencies
above a particular value. All other frequencies haves their amplitudes
attenuated
A low pass filter gets rid of/filters out HIGH frequencies. Everything below a
cutoff frequency is PASSED, everything above is ATTENUATED.
Conversely, a high pass filter passes all frequencies above a particular
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 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 these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller JOSHCLAY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.