Principles of Digital Audio, Sixth Edition, 6th Edition

CHAPTER 3Digital Audio Recording

The hardware design of a digital audio recorder embodies fundamental principles such as sampling and quantizing. The analog signal is sampled and quantized and converted to numerical form prior to storage, transmission, or processing. Subsystems such as dither generator, anti-aliasing filter, sample-and-hold, analog-to-digital converter, and channel code modulator constitute the hardware encoding chain. Although other architectures have been devised, the linear pulse-code modulation (PCM) system is the most illustrative of the nature of audio digitization and is the antecedent of other methods. This chapter and the next, focus on the PCM hardware architecture. Such a system accomplishes the essential pre- and ...