Apple Final Cut Express 4 - Manual (Page 593)

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Setting Up for Audio Mixing
in Final Cut Express
This chapter introduces basic concepts for mixing audio
and configuring your audio system.
This chapter covers the following:
 About Digital Audio (p. 593)
 Audio Signal Flow in Final Cut Express (p. 597)
 Configuring External Audio Monitors (p. 597)
About Digital Audio
Digital audio recording works by recording, or sampling, an electronic audio signal at
regular intervals of time. An analog-to-digital (A/D) converter measures and stores each
sample as a numerical value that represents the audio amplitude at that particular
moment. Converting the amplitude of each sample to a binary number is called
quantization. The number of bits used for quantization is referred to as bit depth.
Sample rate and bit depth are two of the most important factors when determining
the quality of a digital audio system.