Image Processing Reference
In-Depth Information
Sound waves
Sound waves
Electrical signals
Electrical signals
Analog recording process
Figure 7-1 Analog audio capture and reproduction.
If you are planning to store much of this kind of material then a useful rule of thumb
is that a minute of uncompressed audio requires about 11 Mbytes of disk space.
Digital Audio via FireWire
If you ingest audio from multiple analog sources, then a FireWire audio I/O (in/out) inter-
face would be a useful addition to your equipment rack.
Analog audio
Quantization of waveshapes
Figure 7-2 Digital audio samples.
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