Audio Signal Processing and Coding

Andreas Spanias, Ted Painter, Venkatraman Atti

Chapter 11 LOSSLESS AUDIO CODING AND DIGITAL WATERMARKING - all with Video Answers

Educators

Chapter Questions

02:12

Problem 1

What are the differences between the SACD and DVD-A formats? Explain using diagrams. Provide bitrates.

Guilherme Barros

Numerade Educator

Problem 2

Use diagrams and describe the MLP algorithm employed in the DVD-A.

Check back soon!

Problem 3

How is direct stream digital (DSD) technology employed in the SACD different from other encoding schemes? Describe using a block diagram.

Check back soon!

What is the main idea behind the Integer MDCT and its application in lossless audio coding? Explain in a concise manner and by using mathematical arguments the difference between Integer MDCT (Int MDCT) and the MDCT. Show the utility of the FFT in both.

Check back soon!

Problem 5

Explain using an example the lossless matrixing employed in the MLP. How is this scheme different from the Givens rotations employed in the IntMDCT?

Check back soon!

Problem 6

List some of the key differences between the lossless transform audio coder (LTAC) and the IntMDCT algorithm?

Check back soon!

Problem 7

Survey the literature for studies on fast algorithms for IntMDCT and describe at least one such algorithm. Show how computational savings are achieved.

Check back soon!

01:31

Problem 8

Survey the literature for studies on the properties of IntMDCT. Discuss in particular properties dealing with preservation of energy/power (whichever is appropriate) and transform pair uniqueness.