What will the output voltage be of an audio usb converter/dac
\$0.5\cdot Vccci\$, or \$0.5 \times 3.3\$ or \$1.65V\$
\$0.6\cdot Vccci\$ p-p around 1.65V or \$1.65-1.1\$ to \$1.65+1.1\$ or \$0.55V\$ to \$2.75V\$


Adding capacitors will remove the DC offset of \$1.65V\$ making the output \$\pm 1.1V\$