Question 1

The smallest change in level that most people can hear is __________.
A) 10 dB
B) 0 dB
C) 1 dB
D) 3 dB

Accepted Answer

The smallest change in level that most people can hear is typically 1 dB. A change of 3 dB is perceived as a significant change in loudness, and a change of 10 dB is perceived as a doubling or halving of loudness. However, the question asks for the smallest change most people can hear, and that is 1 dB. A change of 0 dB would be no change at all.

Question 2

A sound that is twice as loud is _________ higher in level.
A) 6 to 10 dB
B) 2 dB
C) 10 dB
D) 20 dB

Accepted Answer

A sound that is perceived as twice as loud is typically about 6 to 10 dB higher in level due to the logarithmic nature of the decibel scale and human perception of loudness.

Question 3

A loud sound has ___________.
A) a high LSL.
B) a high frequency.
C) a high voltage.
D) a high SPL.

Accepted Answer

SPL stands for sound pressure level, which is a measure of the amplitude of sound waves. Therefore, a loud sound has a high SPL.

Question 4

If dBV is a measure of level, what is change in level?
A) delta dBV
B) dB C-weighted
C) dB
D) dB1/dB2

Accepted Answer

The answer of If dBV is a measure of level,...

Question 5

In balanced recording equipment, 0 VU corresponds to ______________.
A) 0 dBV
B) 0 dBm
C) +4 dBm
D) +4 dBV

Accepted Answer

In balanced recording equipment, 0 VU corresponds to +4 dBm.

Question 6

What might happen if you connect a +4 dBu output to a -10 dBV input?
A) Signal loss.
B) Nothing.
C) Noise.
D) Distortion.

Accepted Answer

The answer of What might happen if you connect a...

Quiz 22: Appendix A: DB or Not DB

The smallest change in level that most people can hear is __________.

A sound that is twice as loud is _________ higher in level.

A loud sound has ___________.

If dBV is a measure of level, what is change in level?

In balanced recording equipment, 0 VU corresponds to ______________.

What might happen if you connect a +4 dBu output to a -10 dBV input?