Soundcard Driver.

A sound card device driver is a computer program allowing computer programs to interact with a computer hardware device. A sound card driver will communicate with the device through the computer bus or communications subsystem to which the hardware is connected. When a calling program invokes a routine in the driver, the driver makes commands to the device. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. Drivers are hardware dependent and operating system specific. They usually provide the interrupt handling required for any necessary asynchronous time dependent hardware interface. make sure you have the latest sound card driver for optimum performance.