Digital signals can convey information with less noise, distortion, and interference. Digital circuits can be reproduced easily in mass quantities at comparatively low costs. Digital signal processing is more flexible because DSP operations can be altered using digitally programmable systems.
Objectives
The objective of signal processing thus is to extract useful information carried by the signal. Most signals encountered in real life are generated by natural means such as speech, vibrations etc. Further, a signal may be generated synthetically or by computer simulations.
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