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CHAPTER 18

Sound Quality

CHAPTER CONTENTS

What is Sound Quality?

Objective and subjective quality

Sound quality attributes

Quality and fidelity

Quality and naturalness

Quality and liking

Methods of Sound Quality Evaluation

Listening tests

Blind tests

Types of listening test

Perceptual models for sound quality

Aspects of Audio System Performance Affecting Sound Quality

Frequency response

Harmonic distortion

Intermodulation (IM) distortion

Dynamic range and signal-to-noise ratio

Wow, flutter and jitter

Sound quality in the digital signal chain

Sound quality in audio codecs

This chapter is intended as an introduction to the topic of sound quality — what it means and what affects it. Examples are taken from both the analog and digital ...

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