Linear Predictive Coders for Wireless Communications - MCQs
Q1. Linear predictive coders are based on the principle that1. current signal sample is obtained from linear combination of past samples
2. current signal sample is independent of past samples
3. these are time domain vocoders
4. they are among low bit rate vocoders
a. 1), 3) and 4) are correct
b. 2), 3) and 4) are correct
c. 1) and 4) are correct
d. All four are correct
View Answer / Hide AnswerANSWER: a. 1), 3) and 4) are correct
1. Multiple pulses per period
2. Minimization of weighted mean square error
3. Better speech quality
4. Pitch detection is not required
a. 1) and 4) are correct
b. 1) and 3) are correct
c. 2) and 4) are correct
d. All four are correct
View Answer / Hide AnswerANSWER: d. All four are correct
a. The residue of subtraction of generated and original signal is quantized at the transmitter
b. Pitch detection is not required
c. Multiple pulses per period
d. Coder and decoders have predetermined set of codes
View Answer / Hide AnswerANSWER: a. The residue of subtraction of generated and original signal is quantized at the transmitter
