| Analogue to digital convertor (ADC) | |
| A device which transforms the continuous voltage of an analogue audio signal into a set of discrete values. |
| The rate of sampling or measurement is the sampling
rate and corresponds
to the limits of frequency resolution
(see Nyquist). |
The amplitude resolution of the measurement is given
in bits where 1 bit = approximately 6 dB of dynamic range.
Current standard is sampling rate of 44,100 Hz with a resolution of 16 bits (96 dB dynamic range). |