Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC SEMESTER-V EXAMINATION WINTER 2018
Subject Code:X51103 Date: 20/11/2018
Subject Name: Audio Video Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

Describe the construction of a carbon microphone and explain its functioning. Why is a carbon microphone not suitable for PA amplifier systems?
07

Answer the followings:
Explain Picture Resolution and Bandwidth.
Why video compression is needed?
04
03
Q.2

With neat and clean figure explain composite video signal in detail.
07

Draw the simplified cross sectional view of a vidicon camera tube and associated components. Write a brief note on interlaced scanning.
07
OR

Explain public address systems and installations in detail.
07
Q.3

What is stereophony? Explain all stereophonic system and other multi- channel sound system.
07

What do you understand by the terms Positive modulation and Negative modulation? What are the merits and demerits of negative modulation?
07
OR
Q.3

Draw the block diagram of RF Tuner and explain its operation in detail.
07

Explain Digital television Receiver with block diagram.
07
Q.4

Write a brief note on video on demand.
07

Enumerate Distinguishing features of LCD colour receives when compared with Plasma receives. What is 'Slow Response Time' and how its effect is minimized in LCD screens.
07
OR
Q.4

Draw the block diagram of PAL-D colour receiver
07

Explain non-linear editing in detail.
07
Q.5

Give the comparison in detail for NTSC, PAL and French colour TV System.
07

Define luminance and contrast. Write short note on MPEG-x Format for video.
07
OR
Q.5

Write a short note on Video pattern generator.
07

Write a brief note on 3-D Television.
07