Bookmark and Share


Asustek Computer, a leading maker of mainboards, graphics cards and other computer components, recently unveiled its new Xonar DX PCI Express 7.1 discrete audio card claiming that its new device supports Creative Technology’s Environmental Audio Extensions (EAX) 5.0 and allow gamers to enjoy higher quality audio in games. But Creative Technology claims that Asus’ audio card does not support EAX 5.0 at all.

“With the new audio architecture in Vista, users will sometimes be unable to achieve multi-channel sounds, DirectSound; and EAX 5.0 sound effects in EAX 5.0 Titled PC games. With the ASUS Xonar DX, all these problems will be solved,” Asustek Computer said in a statement early in March.

In fact, the situation with EAX as well as hardware-accelerated audio support under Microsoft Windows Vista is rather complicated. The operating system does not allow using hardware-accelerated audio with the help of DirectSound/Direct3D, however, hardware acceleration of audio processing may be exposed either through OpenAL application programming interface or through Creative Technology’s ALChemy driver.

“With support for the innovative DS3D GX 2.0 technology, the Xonar DX automatically supports the latest EAX and DirectSound HW after installation without the need to search for additional drivers or OpenAL – as most games are DS3D/DirectX compatible,” Asustek said, promising support of EAX 3.0, 4.0 and 5.0 features with its Asus Xonar DX PCI Express 7.1 discrete audio card.

Theoretically, it is possible to emulate EAX 3.0, 4.0 and 5.0 capabilities using driver and “report” a software that certain feature is supported in hardware, whereas in reality it is not. According to Creative Technology, emulation is exactly what Asus software does.

“With its recent driver updates, Asus is misleading its customers by suggesting that its sound cards now support EAX 5. Asus sound cards do not support EAX 5, nor do they support EAX 3 or EAX 4. There are a small number of PC game titles that specifically query the audio device on the system to see if EAX 5 is available before they will attempt to render more than 64 3D simultaneous audio voices. The new Asus drivers are falsely reporting EAX 5 capabilities in order to get these games to ouptut 3D audio on Asus sound cards,” said Phil O’Shaughnessy, vice president of corporate communications at Creative Labs.

Even though it is possible to emulate presence of EAX 3.0, 4.0 and 5.0 hardware through software, the actual audio processing will be performed by the microprocessor, which may not be capable of processing up to 128 voices with up to 4 effects applied to each without issues. As a consequence, either the audio quality or game performance may degrade dramatically.

“Asus customers are not getting a genuine EAX Advanced HD experience with this driver update. Furthermore, the several hundred games that support EAX 3 or EAX 4 for delivering in-game effects will not provide those effects from Asus sound cards,” Mr. O’Shaughnessy added.


Comments currently: 5
Discussion started: 03/26/08 08:12:20 PM
Latest comment: 04/02/08 07:05:16 PM
Expand all threads | Collapse all threads


As someone who just replaced an X-Fi with an ASUS Xonar card, it does indeed use EAX in EVERYING I have that supports it.

Creative are just worried that they will be dethroned and can't keep their monopoly in the soundcard business.
0 0 [Posted by:  | Date: 03/30/08 07:13:30 PM]
- collapse thread

MrCobra is wrong I'm afraid. Running an EAX 5.0 application on this card clearly fails to deliver any EAX effects - no reverb and no filters. The only EAX 5.0 function that succeeds is the query for EAX 5.0 support, every other call fails.
It is highly suspicious that any soundcard would claim EAX 2 and 5 support without doing EAX 3 and 4 as well. EAX 5.0 is a superset of EAX 4.0 which is a superset of EAX 3.0. If the card really did EAX 5.0 it would be be capable of doing EAX 3 & 4 as well.
0 0 [Posted by:  | Date: 03/31/08 07:19:50 PM]


Add your Comment

Related news

Latest News

Wednesday, August 20, 2014

10:53 am | AMD to Cut Prices on FX-9000, Other FX Processors: New Prices Revealed. AMD to Make FX Chips More Affordable, Discontinue Low-End Models

10:32 am | LG to Introduce World’s First Curved 21:9 Ultra-Wide Display. LG Brings Curved Displays to Gamers, Professionals

9:59 am | AMD Readies FX-8370, FX-8370E Microprocessors. AMD Preps Two New “Mainstream” FX Chips

Monday, August 4, 2014

4:04 pm | HGST Shows-Off World’s Fastest SSD Based on PCM Memory. Phase-Change Memory Power’s World’s Fastest Solid-State Drive

Monday, July 28, 2014

6:02 pm | Microsoft’s Mobile Strategy Seem to Fail: Sales of Lumia and Surface Remain Low. Microsoft Still Cannot Make Windows a Popular Mobile Platform

12:11 pm | Intel Core i7-5960X “Haswell-E” De-Lidded: Twelve Cores and Alloy-Based Thermal Interface. Intel Core i7-5960X Uses “Haswell-EP” Die, Promises Good Overclocking Potential