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Auzentech Prelude 7.1 (Source: Hardware Canucks)
EAX 5.0 and Dolby Digital Live on a single PCI sound card

Auzentech is set to release the first third-party Creative Labs X-Fi based sound card – the Prelude 7.1. The Prelude 7.1, announced last month, allows users to enjoy multi-channel EAX 5.0 positional audio without connecting four sets of audio cables. Auzentech licenses Dolby Digital Live multi-channel audio encoding technology to provide users single-cable convenience over S/PDIF.

The new Prelude 7.1 mates features previously found on the Auzentech X-Meridian with the Creative Labs X-Fi sound processor. Auzentech equips the Prelude 7.1 with a removable OPAmp on the front channels output of the sound card, unlike the X-Meridian’s four removable OPAmps. A LM4562NA is the default installed OPAmp on the Prelude 7.1.  

Auzentech pairs the Creative Labs X-Fi sound processor with two memory chips for 64MB of memory. AKM digital-to-analog convertors are installed on all eight audio channels, a step up from the Cirrus Logic DACs employed by Creative Labs. Other notable features of the Prelude 7.1 include audio headers, although it is unknown if they meet Creative Labs’ specifications.

Expect the Auzentech Prelude 7.1 to trickle into retail channels in the coming weeks.

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RE: PCI Express
By erwos on 5/31/2007 8:28:04 AM , Rating: 3
You need to do some research, too. ExpressCard has access to a PCIe 1x lane, but it also has access to USB 2.0. This could very well be a USB 2.0 product using ExpressCard's physical interface. In fact, I'd be shocked if it wasn't, given Creative's love of USB sound devices.

That said, the "high PCIe latency" excuse is not something I've ever heard actually backed up with numbers or sourced in any way. The fact that GPGPU stuff works as well as it does puts lie to it, IMHO.

RE: PCI Express
By Flunk on 5/31/2007 9:36:23 AM , Rating: 3
Not to mention that USB is significantly higher latency than PCI-E and there are plenty of USB audio processing products. Soundblaster Audigy USB for one example.

I think the real reason that sound cards are still PCI is that there is little reason to switch to PCI-E. All new motherboards still have PCI and it's cheaper to produce cards with only one interface (If they switch they still need to product PCI cards for older systems).

I expect sound cards to switch to PCI-E around the time that motherboard manufacturers start making boards that don't have PCI slots. Then it will happen very quickly, every card will be PCI-E. This is what happened in the transition to PCI from ISA and I expect it to be repeated here.

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