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Audio - Video Systems

Electronics - Effective Upto 2013

 

Code : 161002 Common Name : AVS Year : 3 Sem : 6
Theory Hours : 4 Practical Hours : 2 Tutorial Hours : 0 Credits : 6
Exam Marks : 70 Midsem Marks : 30 Practical Marks : 50 Total : 150


Syllabus Topics


Sound Fundamentals
The Physics of Sound, Sound and the Ear, The Cochlea, Mental Processes, Level and Loudness, Pitch, Frequency Response and Linearity, Audio Level Metering, The Decibel in Acoustics, Acoustic Intensity Level, Acoustic Power Level, Acoustic Pressure Level, Inverse Square Law, The VU and the Volume Indicator Instrument, The Phon, Velocity of Sound, Reflection and Refraction, Absorption, Root Mean Square Measurements, selection of sound absorbing materials.Architectural Acoustics.



Sound Amplification
Preamplifiers Requirements, Signal Voltage and Impedance Levels, Preamplifier Stages, Voltage Amplifier Design, Constant-Current Sources and Current Mirrors, Performance Standards, Power Amplifier Classes, Thermal Dissipation Limits, Single-Ended Versus Push–Pull Operation, Switching Amplifiers, Amplifier Grounding, Cross Over Network. Audio Terminations Line-in/out, Aux-in/out, Mic In.



Digital Audio
Digital Audio Fundamentals, Sampling and Quantizing, PCM, Audio Compression, Disk-Based Recording, Rotary Head Digital Recorders, Digital Audio Broadcasting, Digital Filtering, Stereophony and Multichannel Sound.



Audio Devices and Applications
Microphone Sensitivity, Nature of Response and Directional Characteristics, Measurement Microphones, Various Types of Microphones, Various Types of Loudspeakers, Characteristic Impedance of Loud Speakers, Headphone Types, The basics of Magnetic Recording, Sound Cards, Sound Mixers, PA Systems & Installations, Digital Consoles.



Introduction to Video Signals
Video signal dimensions, Horizontal sync composition, Vertical sync details, Function of vertical pulse train, Scanning sequence details, Geometric form and aspect ratio, Image continuity, No. of scanning lines, Interlaced scanning, Resolution, Brightness, Contrast, Picture transmission, TV transmitter, TV receiver, Synchronization, Receiver controls. Perception of brightness and colour, Additive and subtractive colour mixing, Video signals for colour transmission, Luminance signal (Y), Compatibility, Colour-difference signals, encoding of colour difference signals, Formation of chrominance signa



Television Signal Transmission & Propagation
Picture Signal transmission, Positive and negative modulation, Vestigial sideband transmission, Standard channel BW, Television transmitter, TV Signal propagation, Interference suffered by TV channels. TV broadcast channels for terrestrial transmission.



Television Receiver
RF Tuner, IF Subsystem, Video amplifier, Sound section, Sync separation and processing, Deflection circuits, Scanning Currents in the yoke, DC power supplies. Electronic tuners, IF Subsystem, Y Signal channel, Chroma decoder, Separation of U and V colour phasors, Synchronous demodulators, Sub carrier generation and control, Matrixing for drive circuits. Receiver Servicing, Video pattern generator, Sweep & Marker generator, Colour TV Pattern Generator, Vectroscope.



Digital Video & Standards
Digitizing Video, Chroma Subsampling, Basics of Video Compression (MPEG-x, H.26x), Digital VTR, Non-Linear Editing, 4:3 Vs 16:9 for Digital Video.



Advances in TV Technology
HDTV, Display Technologies (CRT, LCD, Plasma, LED, Projection), Video Interfaces (Composite, Component, S-Video, DV, SDI, HDMI, DVI),



Television Systems and Standards
NTSC Colour System, PAL Colour System, French Colour TV System, ATSC, ISDB-T & DTMB, Overview of DVB-T, DVB-S, DVB-C & DVB-IP, DVB-H, Cable Television Network




Books

Audio Video Systems Principles Practices and Troubleshooting

Bali & Bali, - Khanna Publishing Company.

Audio Engineering, Know it all series,

- Newnes Press,

Modern Television Practice

R.R. Gulati.

Audio Video Systems

R.G. Gupta, - Technical Education.

Essential Guide to Digital Video

John Watkinson, - Snell & Wilcox Inc Publication.

Guide To Compression

John Watkinson, - Snell & Wilcox Inc Publication.

Exam Papers

Sem2011201220132014
6Nov - 2011
23-11-2011


May - 2011
17-05-2011


Dec - 2012
03-01-2013


May - 2012
11-05-2012


Nov - 2013
29-11-2013


May - 2013
27-05-2013


Nov - 2014
28-11-2014


May - 2014
21-05-2014



GTU Result

ExamTotalPassPass %FailFail %AA
6,9386,28890.636509.3792
7,0756,63493.774416.2392
6,1315,85295.452794.55124
3,6753,43493.442416.5630