Least Significant Bit. In a binary number, this is the final digit – 0 or 1 – and is the least significant because changing it has the smallest effect on the whole number represented compared with changing any of the other digits in the binary number. However, even with their relative insignificance, LSBs can have a significant impact if not cared for properly, particularly when multiplying two binary numbers together – which is why Quantel invented Dynamic Rounding.

*See also: Dynamic Rounding, Binary, Dither, Truncation, Digital Mixing, MSB*