Question

The higher the bit rate, the more speech channels can be compressed within a given bandwidth.

(a) True

(b) False

This question was addressed to me in an interview.

My query is from Characteristics of Speech Signals in section Speech Coding of Wireless/Mobile

Answer 1

The correct answer is (b) False

To elaborate: The lower the bit rate at which the coder can deliver toll quality speech, the more speech channels can be compressed within a given bandwidth. Thus, manufacturers are continuously in search of speech coders that provide toll quality speech at lower bit rates.