I could only find these lines for controlling output of each DAC:
DACC->DACC_CHER = DACC_CHER_CH0 | DACC_CHER_CH1; // Enable DACs 0 and 1
DACC->DACC_CHDR = DACC_CHDR_CH0 | DACC_CHDR_CH1; // Disable DACs 0 and 1
Anyway, my program crashes if they are being used and .wav starts playing.