Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Write a short note on sound, ear and cochlea with neat diagrams.
7 M
1 (b) What are cross over networks? Explain in detail.
7 M

2 (a) Explain digital audio compression? Why is it used? Explain briefly different formats of digital audio compression.
7 M
2 (b) Explain directivity of a microphone. Draw different directional patterns and specify their applications.
7 M
2 (c) List the types of microphones used in audio video engineering and explain any two in detail.
7 M

3 (a) List the types of loudspeaker used in audio video engineering and explain any two in detail.
7 M
3 (b) What is scanning and why is it required? Explain interlaced scanning and state its advantage. Also discuss factors which determine number of scanning lines in a TV system.
7 M
3 (c) Draw and explain The Composite Video Signal in detail.
7 M
3 (d) Describe with block diagram production of color-difference signal and justify the statement "(G-Y) is not chosen for transmission"
7 M

4 (a) Draw VSB channel of 7Mhz.and show the position of various carriers. Why VSB rather than DSB or SSB not chosen for transmission?
7 M
4 (b) Explain the Separation of U and V colour phasors.
7 M
4 (c) State the differences between positive and negative modulation.
7 M
4 (d) Describe briefly co-channel interference adjacent channel interference and Ghost interference effects.
7 M

5 (a) Which TV will you buy, LED/LCD/PLASMA ? Justify your answer by showing the comparison between the three.
7 M
5 (b) Explain the basics of Video Compression techniques.
7 M
5 (c) List the types of Television systems and standard used worldwide and explain it.
7 M
5 (d) Draw the simplified block diagram of PAL-D colour receiver.
7 M



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