The "S" in the S/N ratio in a classroom is the:
A) sound from adjacent rooms.
B) sound of the ventilation system.
C) level of the teacher's voice.
D) scene analysis.

Question

Quizplus · Accepted Answer

The "S" in the S/N ratio stands for "signal," which in this case would be the level of the teacher's voice. The ratio is used to compare the level of desired signal (teacher's voice) to the level of unwanted noise (such as sound from adjacent rooms or the ventilation system). Therefore, choices A and B are incorrect, and choice D (scene analysis) is unrelated to the S/N ratio.

The "S" in the S/N Ratio in a Classroom Is