Compaq�s PCI Accelerated Audio Solution

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Technology Description:

Compaq Presario 5600 brings you the newest in audio with a PCI bus accelerated audio system. PCI-based audio accelerator solutions deliver advanced audio processing while maintaining hardware compatibility with DOS games over the PCI bus.

PCI audio accelerators meet the demands of the newest advanced PC audio applications. The PCI audio accelerator consists of a 64 channel, pipelined, wavetable synthesizer and an audio signal processor. Together they can simultaneously handle multiple audio streams of different data types, high quality MIDI synthesis, and voice compression and decompression. Each channel or stream has an independent pan, tremolo, vibrato, and tone filter. The synthesizer handles advanced audio effects such as reverb, chorus, flange, echo, and 3-D spatial enhancement.

PCI accelerated audio provides the high performance of the PCI interface, while maintaining full compatibility with DOS games. Audio requires the PCI bus to smoothly reproduce high-fidelity audio from the Internet, MIDI, wave, conferencing and other sources. The PCI bus audio provides high performance functionality by enabling the transfer of multiple, independent data streams. The PCI bus improves data transfer efficiency by at least 20X over that of the ISA bus. This is crucial for low latency audio applications such as Internet Phone and other interactive audio streams.

PCI audio accelerates Microsoft�s DirectSound� API by digitally mixing as many as 32 PCM streams of any frequency down to a single output stream. This stream can then be piped to any CODEC available to the system. This consolidation reduces the amount of overhead the CPU must handle and frees it up to handle more crucial tasks.

Key Supporting Features:

High Quality with lower overhead


ESS PCI Audio brings the consumer high quality PCI Audio without the overhead required on most systems. PCI bus brings the possibility of up to 64 distinct channels of sound with connections to specific objects, thus providing positional sound. PCI also brings out the high quality, and fidelity sounds associated with Theater Audio.

User Benefits:

The new generation sound solution for high end audio

Compaq�s ESS PCI bus audio takes advantage of the fast and flexible PCI bus to process the Windows audio information up to 64 individual channels at a time for your PC. PCI Audio is the next generation of sound technology providing better quality sound with less system overhead. PCI Audio increases compatibility with Microsoft Windows for a far smoother operation.

Important note: Information in this technology overview is subject to change without notice. Compaq Computer Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of the material. Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.