EC2037 Multimedia Compression and Communication: AU Chennai Question Bank

University : Anna University Chennai
Course : B.E ECE
Subject Code: EC2037
Subject : Multimedia Compression and Communication
Regulation : 2008
Semester : 07th Semester
Paper Type: Elective
Study Materials Type : Question Bank / Unitwise 2 Marks / Unitwise 16 Marks Questions / Important 2 Marks and 16 Marks
Download Type : Text

UNIT 1
MULTIMEDIA COMPONENTS
PART – A (2 MARKS)
1. What are the multimedia components.
2. Define Interactive Multimedia
3. Define Interpersonal Multimedia
4. Define Pixel depth
5. Define Aspect ratio
6. What are the types of text.
7. Define HyperText
8. Define CIF
9. Define Hyperlink
10. Define Firewire & USB.
11. Difference between additive & subtractive color mixing.
12. What is meant by horizontal scanning?
13. Give brief note on audio compression techniques.
14. What are the application of HDTV format?
15. Define QCIF.
16. Define Hue.
17. Define saturation.
18. Define brightness.
19. Define luminance.
20. What are the features of WWW.

PART – B (16 MARKS)

1. Explain the interlaced scanning principles of  broadcast television (16)
2. Explain audio compression techniques in detail. (16)
3. Explain the working of Audio synthesizer (16)
4. Explain the color principles & Raster-scan principles of Digitized pictures (16)
5. Write a short note on 1. Unformatted text (4), 2. Formatted text (4), 3. Hypertext (4) 4. HTML (4)
6. Explain the hardware used in multimedia (16)
7. Explain the formats in Digital Video. (16)
8. Explain the working principle of Digital Camera & scanner with neat block diagram. (16)
9. Explain in detail the multimedia skills. (16)
10. Explain the PCM speech technique. (16)

UNIT II
AUDIO AND VIDEO COMPRESSION
PART – A (2 MARKS)
1. Define Frequency Masking
2. Define Temporal Masking
3. Define CIF & QCIF with diagram
4. Difference between H.261 & MPEG 1
5. Draw the block diagram of DPCM(encoding & decoding schematic)
6. Difference between H.263 & H.263
7. Define LPC
8. Define Pulse Code Modulation
9. Define Adaptive Differential Pulse-Code Modulation
10. Differentiate PCM and DPCM
11. Define pitch
12. Define period and loudness
13. Define subband coding.
14. List out the parameters for vocal track excitation.
15. Define motion or moving pictures.
16. Define code excited LPC.
17. What is the principle of adaptive predictive coding.
18. Define Motion estimation.
19. Define prediction span.
20. Define motion vector.

PART – B (16 MARKS)
1. Explain DPCM & Three order  predictive DPCM with block diagram(16)
2. Explain Linear predictive coding & Code excited LPC(16)
3. Explain MPEG-4 with block diagram(16)
4. Explain the working principles of H.261(16)
5. Explain the working principles of H.263(16)
6. Explain Motion picture expert group version  2 (16)
7. Explain Perceptual coding in detail.(16)
8. Explain the different types of frames in video compression principles.(16)
9. Explain ADPCM with encoders & decoders schematic.(16)
10. Define PCM and explain in detail.

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