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This is used to convert digital data back into analogue format.
This is used to convert analogue data into digital format.
This is the process of converting an analogue signal into digital.
Converting the analogue signal into a digital value ( usually at regular time intervals ).
The sampling rate needs to be double the highest frequency in the information signal. So for voice signals up to 4000 Hz, the sampling rate needs to be 8000 samples per second.
Unwanted frequencies or visual artefacts in the digital output caused by the sampling rate being too low. The analogue signal must be filtered to guarantee that all unwanted higher frequencies are removed before converting to digital.
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