Miscellaneous
Digital Signal Processing (DSP)
- Analogue signals can be converted to digital signals by sampling them
at very frequent intervals. The digital signal is just a sequence of numbers
that represent the instantaneous value of the analogue signal each time it is sampled
- The sampling rate has to be at least twice the highest frequency contained
in the analogue signal or it will not be possible to reconstruct the analogue signal
from the digital data
- For an audio signal in the range 0 – 4kHz the lowest sampling rate would be 8kHz