Which of the following would not be expected to improve speech intelligiblity
A) Allowing the listener to see the speakers face
B) Eliminating sounds in the range of 400-4000 Hz
C) Using a smaller vocabulary set
D) Knowing beforehand what subject of the communication might be about

Question

Quizplus · Accepted Answer

Eliminating sounds in the range of 400-4000 Hz would not improve speech intelligibility because this frequency range is crucial for understanding human speech. Most of the phonetic information that distinguishes one consonant from another lies within this range.

Which of the Following Would Not Be Expected to Improve