Question

Which of the following is the name of original speech coder used in the pan European digital cellular standard GSM?

(a) Multipulse excited codec

(b) Residual excited codec

(c) Regular pulse excited long term prediction

(d) Code excited codec

I have been asked this question in class test.

This interesting question is from Speech Codecs topic in division Speech Coding of Wireless/Mobile

Answer 1

The correct option is (c) Regular pulse excited long term prediction

The explanation is: The original speech coder used in the pan European digital cellular standard GSM goes by a rather grandiose name of regular pulse excited long term prediction (RPE-LTP) codec. This codec has a bit rate of 13 kbps.