ES1990

ESS Technology, Inc. DESCRIPTION The ES1990 Canyon3D™2LE PCI audio accelerator combines advanced audio functionality in a highly integrated, single-chip, PCI solution for advanced multichannel PC audio. With key features, including hardware acceleration, 3D audio support, and integrated quad DAC AC‘97 codec, the Canyon3D-2LE will engulf the user in a 3D world of sound when used with general applications, digital music, or games. The ES1990 combines the advantages of a highbandwidth PCI bus interface, proven Canyon3D digital signal processing (DSP) hardware architecture, highfidelity quad DAC AC‘97 codec into a single-chip package with external AC-link for additional future functionality. The result is robust PC audio functionality, which features digital mixing, sample rate conversion, realtime effects processing, multistream DirectSound® hardware acceleration, and head-related transfer function (HRTF) filtering. The 3D audio support and HRTF filtering are licensed through Sensaura™ Ltd. The HRTF filtering is supported for 2- and 4-speaker outputs, using MultiDrive™ technology. The 3D audio is supported through DirectSound 3D, A3D 1.0, EAX 1.0, EAX 2.0, and I3DL2 advanced programming interfaces (APIs). Additional 3D audio enhancements are available through MacroFX™, EnvironmentalFX™, and ZoomFX™. The ES1990 meets PC99/PC2001 and Microsoft WHQL specifications. Device drivers for the ES1990 are optimized for use on the Microsoft Windows® operating systems and are designed speci...