| | PCI 2.1-compliant with Bus Mastering optimized for multiple stream operation |
| | On-chip per voice cache minimizes PCI bandwidth |
| | Up to 20X improvement over ISA DMA on PCI bus bandwidth utilization |
Advanced Wavetable Synthesizer
| | Wavetable synthesis with 64-voices polyphony, which supports all combinations of stereo/mono, 8-/16-bits, and signed/unsigned samples |
| | Per channel volume, pitch shift, left/right pan, tremolo, vibrato and envelope control (32 channels in hardware) |
| | Per channel effect process ing and effect volume control for reverb, chorus, and echo |
| | DLS1-compliant Downloadable Samples support |
Legacy Compatibility
| | Legacy game audio support with SoundBlaster Pro/16 compatibility on the PCI bus |
| | Legacy DMA support on PCI Bus with DDMA-enabled or standard (non-DDMA) PCI chipsets |
| | FM through realtime FM-to-wavetable conversion |
| | MPU-401 compatible UART for external or internal synthesis |
| | General MIDI/GS command interpretation for wavetable & effect synthesis |
High Quality Audio and AC97 Support
| | CD quality audio with higher than 90 dB signal-to-noise ratio using an external high quality AC97 codec |
| | AC97 support with full duplex, independent sample rate converter for audio recording and playback |
| | On-chip sample rate converter ensures all internal operation at 48 kHz |
| | High precision internal 26-bit digital mixer with 16- and 20-bit digital audio output |
Advanced Streaming Architecture
| | Microsoft WDM Streaming architecture compliant and "Re-routable endpoint" support |
| | Three stereo capture channels |
| | AC97 stereo recording channel through AC-link |
DirectSound 3D
| | 64-voices DirectSound channels |
| | 32-voices DirectSound3D accelerator with IID, ITD, and Doppler effects on 3D positional audio buffers |
| | DirectSound accelerator for volume, pan, and pitch shift control on streaming or static buffers |
Telephony & Modem
| | Full duplex speaker phone with AC97 2.0 audio-modem codec |
| | Fax-modem with host based software |
Extras
| | Fully Plug and Play PCI controller and software |
| | Digital Enhanced Game port enables an analog joystick to emulate digital joystick performance using the National Semiconductor-provided DirectInput driver. This eliminates up to 12% CPU overhead wasted on joystick polling. |
| | DirectX timer for video/audio synchronization |
| | Forward pin-compatible with future PCI audio accelerators |
| | 100-pin TQFP package |
| | 3.3V operation |
Software Support
| | Complete DirectX driver suite (DirectSound3D, DirectSound, DirectMusic, and DirectInput) for Windows 95 and Windows 98/NT 5.0 |
| | Configuration installation, and diagnostics under real mode DOS, WindowsWindows 95, and Windows 98 DOS box |
| | Windows 3.1, 95, NT4.0, Windows 98/NT5.0 configuration, installation, and mixer program |
| | 1, 2, 4, or 8 Mbytes General MIDI (GM)/General Sound (GS) compliant sample Library |