AVIXA Audio Systems CTS QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) |
GRADED A+ | NEW VERSION 2025-2026
What is the International System of Units Abbreviate - ANSWERS✅ SI
What is the SI unit for pressure ? - ANSWERS✅ pascal (Pa)
What is the threshold of human hearing (sound of silence) in Pascals ? -
ANSWERS✅ .00002 Pa
What Pascal level would one need for a risk of hearing loss ? - ANSWERS✅ 20.0
Pa
Why is sound measured in Decibals (DB) vs. Pascals ? - ANSWERS✅ DB is
measured using Logarithms (exponential multiples of 10) vs. linear (one at a time)
Threshold of human hearing (sound of silence) in dB ? - ANSWERS✅ 0 db
Very quiet room sound level ? - ANSWERS✅ 30 dB
Office cubicle sound level ? - ANSWERS✅ 55 dB
Normal conversation sound level ? - ANSWERS✅ 70 dB
, The sound level of yelling ? - ANSWERS✅ 85 db
Rock concert sound level ? - ANSWERS✅ 115 dB
Pain/hearing damage sound level ? - ANSWERS✅ 130 dB
How much dB level is required for a "just noticeable" change in sound louder or
softer ? - ANSWERS✅ 3 dB
A ____ decibel change is required for you to subjectively perceive either a change
as twice as loud as before or one-half as loud as before. - ANSWERS✅ 10
In AV the_______ formula is for power calculations only. - ANSWERS✅ 10 log
In AV the _______ log formula is for voltage, pressure, and distance -
ANSWERS✅ 20 log
Term used to describe no gain or change in attenuation - ANSWERS✅ unity
What two characteristics of a sound wave are responsible for loudness ? -
ANSWERS✅ amplitude and frequency
what is the typical range of human hearing - ANSWERS✅ 20 Hz to 20 kHz
CORRECT ANSWERS (VERIFIED ANSWERS) |
GRADED A+ | NEW VERSION 2025-2026
What is the International System of Units Abbreviate - ANSWERS✅ SI
What is the SI unit for pressure ? - ANSWERS✅ pascal (Pa)
What is the threshold of human hearing (sound of silence) in Pascals ? -
ANSWERS✅ .00002 Pa
What Pascal level would one need for a risk of hearing loss ? - ANSWERS✅ 20.0
Pa
Why is sound measured in Decibals (DB) vs. Pascals ? - ANSWERS✅ DB is
measured using Logarithms (exponential multiples of 10) vs. linear (one at a time)
Threshold of human hearing (sound of silence) in dB ? - ANSWERS✅ 0 db
Very quiet room sound level ? - ANSWERS✅ 30 dB
Office cubicle sound level ? - ANSWERS✅ 55 dB
Normal conversation sound level ? - ANSWERS✅ 70 dB
, The sound level of yelling ? - ANSWERS✅ 85 db
Rock concert sound level ? - ANSWERS✅ 115 dB
Pain/hearing damage sound level ? - ANSWERS✅ 130 dB
How much dB level is required for a "just noticeable" change in sound louder or
softer ? - ANSWERS✅ 3 dB
A ____ decibel change is required for you to subjectively perceive either a change
as twice as loud as before or one-half as loud as before. - ANSWERS✅ 10
In AV the_______ formula is for power calculations only. - ANSWERS✅ 10 log
In AV the _______ log formula is for voltage, pressure, and distance -
ANSWERS✅ 20 log
Term used to describe no gain or change in attenuation - ANSWERS✅ unity
What two characteristics of a sound wave are responsible for loudness ? -
ANSWERS✅ amplitude and frequency
what is the typical range of human hearing - ANSWERS✅ 20 Hz to 20 kHz