Chapter 2
Audio Basics
This chapter covers the following topics:
Basic Understanding of Sound: This topic will introduce a basic understanding of how sound behaves, including wave propagation, technical properties of sound waves, and noise.
Analog vs. Digital Signals: This topic will compare noise on an analog signal compared to noise on a digital signal, observe the principle of the Nyquist-Shannon theorem, and identify how bandwidth conservation can be achieved through data compression.
ITU Audio Encoding Formats: This topic will identify the most commonly used audio codecs in a Cisco solution and analyze the various aspects of each codec.
The preceding chapter provided a backward look into the evolution of communications and a high-level ...
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