Digital signal processing

Digital signal processing (DSP) is the study of signals in a digital representation and the processing methods of these signals. DSP and analog signal processing are subfields of signal processing. DSP has three major subfields: audio signal processing, digital image processing and speech processing.

Related Topics:
Signal - Digital - Analog signal processing - Signal processing - Audio signal processing - Digital image processing - Speech processing

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Since the goal of DSP is usually to measure or filter continuous real-world analog signals, the first step is usually to convert the signal from an analog to a digital form, by using an analog to digital converter. Often, the required output signal is another analog output signal, which requires a digital to analog converter.

Related Topics:
Analog to digital converter - Digital to analog converter

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The algorithms required for DSP are sometimes performed using specialized computers, which make use of specialized microprocessors called digital signal processors (also abbreviated DSP). These process signals in real time. They are optimized for DSP computations.

Related Topics:
Algorithm - Computers - Digital signal processor - Real time

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