This document contains questions from an electronics and communication engineering exam on digital audio engineering. It has three parts: Part A contains 10 short answer questions covering topics like sampling theorem, Nyquist rate, channel coding, digital audio broadcasting principles, compression techniques, interleaving, DAT data structure, optical disk types, SDMI, and sound cards. Part B has 5 long answer questions, with choices, on sampling and reconstruction, PCM, lossless and perceptual coding with subband coding, MPEG compression standards, digital audio editor structure, and CD/MD disc construction. Part C is a single long answer question with choices on block/convolution coding or editing with random access and recording media.

1. Reg. No. :
B.E./B.TECH. Model examinations, November/December 2021
Fifth semester
Electronics and Communication engineering
OTL552-Digital Audio Engineering
(Regulations 2017)
Time : Three Hours Maximum : 100 Marks
Answer All Questions
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

2. 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
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