DA CONVERTER DEVICE AND SOUND SYSTEM

摘要

In a DA converter device, a distortion correction function (g1(x)) of harmonics that is obtained as a result of a frequency analysis of an analog output signal of a DA converter circuit (15) is obtained, and correction values set on the basis of the correction function (g1(x)) in accordance with inputted digital signal values are stored in a storage device (20) in advance. A nonlinear correction circuit (21) reads, from the storage device (20), a correction value corresponding to the value of the digital signal output of a digital filter (10), and sends the correction value to a subtractor (20). The subtractor (20) subtracts the read out correction value from the digital signal output of the digital filter (10).