Download GTU BE/B.Tech 2019 Winter 6th Sem Old 161002 Audio Video Systems Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem Old 161002 Audio Video Systems Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VI (Old) EXAMINATION ? WINTER 2019
Subject Code: 161002 Date: 12/12/2019

Subject Name: Audio - Video Systems

Time: 02:30 PM TO 05:00 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 (a) List different types of Microphones used in Audio Video Engineering and explain
any two in detail.
07
(b) Describe interlaced scanning and justify that ?For interlaced scanning the total
number of lines in any TV system must be odd.
07

Q.2 (a) Compare single ended verses push-pull amplifiers. Draw and explain the circuit
diagram for class-B push-pull amplifier.
07
(b) Draw Composite Video Signal for three consecutive lines and explain each part
in detail.
07
OR
(b) Draw the cross section of cochlea and explain each part. 07

Q.3 (a) Define following terms with respect to audio and video systems.
1) Pitch 2) Timber 3) Loudness 4) Hue 5) Saturation 6) Luminance
Signal 7) Phon.

07
(b) Discuss merits and demerits of Positive and Negative Modulation. 07
OR
Q.3 (a) Explain the basics of audio compression technique. 07
(b) Draw the block diagram of monochrome TV receiver and explain each block in
brief.
07

Q.4 (a) Write short note on colour TV pattern generator. 07
(b) Explain the block diagram of PAL ? D decoder. 07
OR
Q.4 (a) Why video compression is required? Explain any two video compression
Techniques.

07
(b) Discuss in detail the working principal of LED TV and LCD TV. 07

Q.5 (a) Write short note on: Cable Television Network. 07
(b) With reference to colour TV receiver explain the function of following circuits.
(1) Colour killer circuit (2) Comb Filter (3) Y channel delay line.

07
OR

Q.5 (a) Compare the characteristics of Cone Type and Horn type Speakers. Also mention
their applications.
07
(b) List the types of television systems and standard used worldwide and explain it. 07

*************
FirstRanker.com - FirstRanker's Choice