Creative SB0350 Programming Manual page 49

3-20 Digitized Sound I/O Programming
To stop high-speed auto-initialize DMA mode, send the reset DSP command.
At the end of data transfer:
1.
2.
3.
4.
Turn off the DAC speaker.
outp(wSBCBaseAddx+0xC, 0xD3)
Disable the interrupt used.
Restore the original interrupt service routine.
Release the allocated DMA buffer.