In digital audio , bit depth describes the potential accuracy of a particular piece of hardware or software that processes audio data. In general, the more bits that are available, the more accurate the resulting output from the data being processed.
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Bit depth is frequently encountered in specifications for analog-to-digital converters ( ADC s) and digital-to-analog converters ( DAC s), when reading about software plug-in , and when recording audio using a professional medium such as a digital audio workstation or a Digital Audio Tape machine.
Bit depth is the number of bit s you have in which to describe something. Each additional bit in a binary number doubles the number of possibilities. By the time you have a 16-bit sequence, there are 65,536 possible levels. Add one more bit, and you double the possible accuracy (to 131,072 levels). When you have a 24-bit process or piece of 24-bit hardware, there are 16,777,216 available levels of audio.