CHAPTER 9

Audio Data Reduction

CHAPTER Contents

Lossless Coding

Lossy Coding

MPEG — An Example of Lossy Coding

Encoding

Decoding

MPEG-1 Layers

Later MPEG Standards

Parametric Audio Coding

Surround Coding Formats

High-Resolution Data-Reduced Formats

Object-Based Coding

Immersive Audio Coding

Sound Quality in Audio Codecs

Preparing Content for Data-Reduced Downloads and Streaming Services

Mastered for iTunes

Recommended Further Reading

Data reduction of audio signals may be employed to optimize the use of storage capacity in digital recording systems, or to make cost-effective use of bandwidth in broadcast transmission systems and in digital communications. It is quite often used in consumer products and media streaming systems, where it is ...

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