The Creative ES1371 is an audio controller chip from Creative Technology, widely used in the Sound Blaster PCI 128 sound cards. Based on the Ensoniq AudioPCI architecture, it delivers high-quality audio playback with support for DirectSound and EAX extensions, enhancing gaming and multimedia experiences. The ES1371 offers compatibility with legacy DOS applications through emulation, making it a versatile solution during the late 1990s PC audio transition. Its affordability, stability, and driver support made it popular among OEMs and mainstream users.