A digital signal processor (DSP) is a specialized microprocessor with an architecture optimized for the operational needs of digital signal processing.Digital signal processing algorithms typically require a large number of mathematical operations to be performed quickly and repeatedly on a series of data samples. Many DSP applications have constraints onlatency; that is, for the system to work, the DSP operation must be completed within some fixed time, and deferred processing is not viable.Most general-purpose microprocessors and operating systems can execute DSP algorithms successfully, but are not suitable for use in portable devices such as mobile phones because of power supply and space constraints. A specialized digital signal processor, will tend to provide a lower-cost solution, with better performance, lower latency, and no requirements for specialized cooling or large batteries.
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