Audio - Video Systems — Winter 2019

List different types of Microphones used in Audio Video Engineering and explain any two in detail.

Describe interlaced scanning and justify that “For interlaced scanning the total number of lines in any TV system must be odd.

Compare single ended verses push-pull amplifiers. Draw and explain the circuit diagram for class-Bpush-pull amplifier.

Draw Composite Video Signal for three consecutive lines and explain each part in detail.

Draw the cross section of cochlea and explain each part.

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.

Discuss merits and demerits of Positive and Negative Modulation.

Explain the basics of audio compression technique.

Draw the block diagram of monochrome TV receiver and explain each block in brief.

Write short note on colour TV pattern generator.

Explain the block diagram of PAL – Ddecoder.

Why video compression is required? Explain any two video compression Techniques.

Discuss in detail the working principal of LED TV and LCD TV.

Write short note on: Cable Television Network.

With reference to colour TV receiver explain the function of following circuits. (1) Colour killer circuit (2) Comb Filter (3) Ychannel delay line.

Compare the characteristics of Cone Type and Horn type Speakers. Also mention their applications.

List the types of television systems and standard used worldwide and explain it.