The is a Windows Driver Model (WDM) audio driver designed for audio chips or sound cards, specifically the Yamaha YMH724 chipset. This chip was often used in older audio devices, such as soundcards or onboard audio solutions, to provide high-quality audio processing for PCs. The WDM standard is a Microsoft driver model that helps ensure compatibility between the sound hardware and the operating system.

The allows the Windows operating system to communicate with the YMH724 audio hardware, enabling functions such as playback, recording, and sound mixing. This driver is commonly associated with older audio hardware, and it's particularly useful for users who have legacy systems or older sound cards.