This document contains an examination for a third year digital audio engineering course. It includes questions about key topics in digital audio such as sampling theory, pulse code modulation, compression techniques, optical storage disks, MIDI, MP3 and channel coding. The exam is divided into three parts: Part A contains 10 multiple choice questions worth 2 marks each, Part B contains 5 essay questions worth 13 marks each and Part C contains 1 question worth 15 marks.
1. DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
III YEAR ECE -Model Examination
OTL552-Digital Audio Engineering
PART-A (10*2=20 Marks)
1. Define sampling theorem
2. Define Nyquist rate & Interval
3. Draw the block diagram of Channel coding
4. What is the principle of DAB
5. What are the compression principles used
6. Define Interleaving
7. Draw DAT Data Channel Packet structure
8. Write the types of optical disk
9. What is SDMI
10. Write the sound cards used in PC
PART - B (5*13=65 Marks)
11. a) Explain in detail about the sampling &reconstruction
(OR)
b) Explain in detail about dither and Requantizing dither
12. a) Explain in detail about Pulse code modulation (PCM)
(OR)
b) Write shorts notes on DAB
13. a) (i)Write Short Notes on lossless & Perceptive coding
(ii) Explain in detail about Sub band coding
(OR)
b) Explain the following MPEG Compression (i) MPEG Layer I (ii) MPEG Layer II
2. 14. a) Explain digital audio editor structure with neat block diagram.
(OR)
b) Write short notes on CD,MD Disc construction
15. a) Describe MIDI.
(OR)
b) Explain in detail about MP3
PART - C (1*15=15 Marks)
16. a) Explain in detail about Block & Convolution code with example
(OR)
b) Describe in detail about editing with random access media &recording media
