A/D CONVERTING DEVICE

摘要

PROBLEM TO BE SOLVED: To facilitate adjustment with an acoustic unit having the characteristic of a different headroom. SOLUTION: A digital signal from an A/D converter 14 is inputted to a level converting part 15 and the level converting part 15 sets the level of the digital signal from the AD converter 14 based on a value set by a level setting input part 17 and outputs it.