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Recent questions tagged pulse-code-modulation
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GATE ECE 1998 | Question 2.18
In a $\text{PCM}$ system with uniform quantisation, increasing the number of bits from $8$ to $9$ will reduce the quantisation noise power by a factor of$9$$8$$4$$2$
admin
287
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asked
Sep 26, 2022
Digital Communications
gate1998-ec
analog-communications
pulse-code-modulation
numerical-answers
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239
239 views
GATE ECE 1998 | Question 2.24
Compression in $\text{PCM}$ refers to relative compression ofhigher signal amplitudeslower signal amplitudeslower signal frequencieshigher signal frequencies
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239
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Sep 26, 2022
Digital Communications
gate1998-ec
analog-communications
pulse-code-modulation
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269
269 views
GATE ECE 2003 | Question: 83
A signal is sampled at $8 \; \mathrm{kHz}$ and is quantized using $8$-bit uniform quantizer. Assuming $\mathrm{SNR}_q$ for a sinusoidal signal, the correct statement for ...
admin
269
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asked
Sep 26, 2022
Digital Communications
gate2003-ec
digital-communications
pulse-code-modulation
quantitative-aptitude
information-theory
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347
347 views
GATE ECE 2004 | Question: 25
In a $\text{PCM}$ system, if the code word length is increased from $6$ to $8$ bits, the signal to quantization noise ratio improves by the factor$8 / 6$$12$$16$$8$
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347
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asked
Sep 25, 2022
Digital Communications
gate2004-ec
pulse-code-modulation
signal-to-noise-ratio
digital-communications
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0 votes
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1 answer
601
601 views
GATE ECE 2004 | Question: 28
In the output of a DM speech encoder, the consecutive pulses are of opposite polarity during time interval $t_{1} < t < t_{2}.$ This indicates that during this intervalth...
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601
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asked
Sep 25, 2022
Digital Communications
gate2004-ec
analog-communications
pulse-code-modulation
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253
253 views
GATE ECE 1995 | Question 1.38
If the number of bits per sample in a $\text{PCM}$ system is increased from improvement in signal-to quantisation noise ratio will be$3 \mathrm{~d B}$$6 \mathrm{~d B}$$2...
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253
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asked
Sep 21, 2022
Data Converters
gate1995-ec
analog-communications
pulse-code-modulation
numerical-answers
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335
335 views
GATE ECE 1994 | Question 2.18
The bandwidth required for the transmission of a $\text{PCM}$ signal increases by a factor of _________ when the number of quantization levels is increased from $4$ to $6...
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335
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asked
Sep 19, 2022
Digital Communications
gate1994-ec
digital-communications
pulse-code-modulation
numerical-answers
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392
392 views
GATE ECE 2016 Set 2 | Question: 22
A speech signal is sampled at $8$ $kHz$ and encoded into $PCM$ format using $8$ bits/sample. The $PCM$ data is transmitted through a baseband channel via $4$-level $PAM$....
Milicevic3306
392
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asked
Mar 27, 2018
Communications
gate2016-ec-2
numerical-answers
digital-communications
pulse-code-modulation
analog-communications
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438
438 views
GATE ECE 2014 Set 3 | Question: 51
In a $PCM$ system, the signal $m(t)=\left \{\sin(100\pi t)+\cos(100\pi t) \right \}V$ is sampled at the Nyquist rate. The samples are processed by a uniform quantizer wit...
Milicevic3306
438
views
asked
Mar 26, 2018
Communications
gate2014-ec-3
numerical-answers
digital-communications
pulse-code-modulation
analog-communications
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748
748 views
GATE ECE 2017 Set 2 | Question: 23
A sinusoidal message signal is converted to a PCM signal using a uniform quantizer. The required signal-to-quantization noise ratio (SQNR) at the output of the quantizer ...
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748
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asked
Nov 23, 2017
Communications
gate2017-ec-2
digital-communications
numerical-answers
pulse-code-modulation
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