GSM Codec & Selection of Speech Coders in Wireless Communication - MCQs

GSM Codec & Selection of Speech Coders in Wireless Communication - MCQs

Q1. The speech sequence in GSM Codec consists of

a. Pre emphasis, segmentation, windowing, filtering
b. windowing, Pre emphasis, segmentation, filtering
c. Pre emphasis, windowing, segmentation, filtering
d. Pre emphasis, segmentation, filtering, windowing

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Q2. The windowing technique used for speech coding in GSM Codec is

a. Blackman window
b. Welch window
c. Cosine window
d. Hamming window

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Q3. The received signal at the GSM speech decoder is passed through

a. STP filter
b. LTP filter
c. Quantizer
d. PLL

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Q4. In GSM Codec, the bits encoded for forward error correction are

a. Ia bits
b. Ib bits
c. II bits
d. Both a) and b)
e. Both a) and c)

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Q5. The speech coders are selected on the basis of

1. Robustness to transmission errors
2. Cell size
3. Type of modulation technique used
4. Distance between the transmitter and receiver

a. 1) and 4) are correct
b. 1), 2) and 3) are correct
c. 2) and 4) are correct
d. All four are correct

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