Rajasthan Technical University 2010 B.Tech Information Technology Multimedia system - Question Paper

Q.3. (a) Write short note on any four:
1. L Z77 and L ZW compression
2. Sliding window compression
3. Dictionary based compression
4. Adaptive coding
5. Finite situation modeling (16)
OR
Q.3. (a) discuss the Shannon Fano Algorithm in detail. (8)
(b) What is Compression? Compare the lossy compression and loss-less compression. (8)
UNIT-4
Q.4. (a) Compare the subsequent lossy audio compression formats (any three):
1. WMA
2. Real Audio
3. Oggvorbis
4. AAC (6)
(b) List the 4 main sampling rates and 2 sampling depths. Briefly define what every is most useful for. How does mono versus stereo come into the question? (8)
(c) Write short note on Speech compression. (2)
OR
Q.4. (a) Compare the subsequent lossless audio compression formats (any three):
1. SHN
2. FLAC
3. Monkey's Audio
4. TTA
5. Apple lossless
6. Wavpack (6)
(b) What is meant by Compression and CODEC? (3)
(c) Briefly explain what describes the quality of an audio signal? (4)
(d) discuss the different sampling variables. (3)
UNIT-5
Q.5. (a) What is meant by Color model? Why do we require multiple color models? (3)
(b) How does the RGB model represent color information? Why is it called an additive model? (4)
(c) In relation to JPEG compression scheme discuss the subsequent (any two):
1. Block preparatation
2. Zig-zag scan
3. Entropy encoding steps (6)
(d) discuss in detail MPEG one Audio Layers III standard. (3)
OR
Q.5. (a) discuss in brief the different parts of any 2 subsequent standards:
1. MPEG-1 Standard
2. MPEG-4 Standard
3. MPEG-21 Standard
(b) What is meant by frames and frame rate in connection with motion video? (3)
(c) discuss the different digital video compression schemes. (3)
(d) explain about major video file formats. (2)

Earning:   Approval pending.