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Xtreme Creative nonsense, are they for real?
dub_doctor
post May 18 2005, 02:02
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http://www.mi2n.com/press.php3?press_nb=79839

QUOTE
Xtreme Fidelity
Xtreme Fidelity sets a new standard for audio by supporting a combination of 24-bit quality, stunning audio clarity with a minimum of 110db SNR and the new CMSS (Creative Multi Speaker Surround) 3D headphone and surround speaker technology. Consumers will be able to upgrade their existing CD and MP3 music to the Xtreme Fidelity standard, using applications that can run on the Creative X-Fi Xtreme Fidelity audio processor. Being able to upgrade an existing library of music to Xtreme Fidelity differentiates it from other high-end music standards such as DVD-A and SACD, which offer limited selection and require consumers to repurchase their music in that specific format. When consumers upgrade their CD or MP3 music to the new Xtreme Fidelity standard, they will be able to experience playback that sounds better than its original CD recording.


Also mentioned here: http://www.cdfreaks.com/news/11822
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dub_doctor
post May 18 2005, 02:03
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And another quote, just in case you missed it:

QUOTE
CD and MP3 Music
All CD music is in 16-bit resolution, which is typically compressed from an original 24-bit studio recording. When converting CD music to MP3 format, the music is compressed yet again. These types of compression result in a compromise of audio quality and clarity. The Creative X-Fi Xtreme Fidelity audio processor drives new applications that can enhance MP3s by bringing them back to 24-bit quality, and allows the user to upgrade the music to multi-channel surround sound. This enhancement enables virtually all MP3 music to sound even better than it did on the original CDs.


[Edit: Sorry - didn't realise this has been discussed here before: http://www.hydrogenaudio.org/forums/index....33927&hl=xtreme
In any case, it is so bad its probably worth repeating!]

This post has been edited by dub_doctor: May 18 2005, 02:14
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Lyx
post May 18 2005, 03:36
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Since when is creative labs credible anyways? I know no other PC-technology manufacturer, which has done such incredible things as creative labs. Starting from their drivers-support to hardware-quality to plain out lies. The only thing creative labs is selling today is their name and market-penetration.

- Lyx

This post has been edited by Lyx: May 18 2005, 03:37


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mandel
post May 18 2005, 20:29
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What a load of absolute wacko.gif sick.gif

Sadly a lot of people not 'in the know' will believe this nonsense...
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ChiGung
post May 18 2005, 20:50
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QUOTE (mandel @ May 18 2005, 08:29 PM)
What a load of absolute wacko.gif  sick.gif

Sadly a lot of people not 'in the know' will believe this nonsense...
*


Has anyone listened to this technology yet ?


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Jebus
post May 19 2005, 09:07
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I don't see why it is technically impossible to improve audio... we do it with video all the time. I assume it is just that we don't have algorithms advanced enough to do it yet.

I doubt creative does either, though.
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Acid8000
post May 19 2005, 09:49
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Ahh poor 'audiophiles' and gamers (well I'm a gamer myself). I'd like to see them add 'depth', 'warmth', 'crispness', and 'clarity' to the rare 96kbps mp3 files on my computer.


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Jens Rex
post May 19 2005, 14:19
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Through inside sources at Creative Labs, I managed to get a screenshot of the Creative Xtreme Fidelity control panel. Take a look. Very interesting.

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pest
post May 19 2005, 14:30
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laugh.gif
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NumLOCK
post May 19 2005, 15:05
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LOL laugh.gif

Excellent ! You only forgot the 'advanced settings' panels:

[X] Flash ROM auto-erase on reboot (requires ACPI motherboard support)
[X] Overwrite PCI ID with Joystick Controller data (one-way upgrade !)
[X] Prepare for clean driver upgrade (requires Norton Utilities or a SafeErase® 2.x product)
[X] Enable in-game EAX crashes

cool.gif

Edit: I should mention the new settings that are being added (seen in the recently leaked pre-alpha drivers):

[X] Enable PCI bus compliance (EXPERIMENTAL !)
[X] Fix for random data corruption on AMD/Intel/VIA/SiS/NVIDIA chipsets
[X] PCI voltage tweak 1
[X] PCI voltage tweak 2 (DANGEROUS)
[X] Use correct filter coefficients when resampling audio

I don't know what the voltage tweaks are, but they sound good wink.gif

This post has been edited by NumLOCK: May 19 2005, 15:18


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p0wder
post May 19 2005, 15:25
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Hahahahaahahaha!!! That is soooooo Xtreme!!
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smok3
post May 19 2005, 15:46
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QUOTE (Jebus @ May 19 2005, 10:07 AM)
I don't see why it is technically impossible to improve audio... we do it with video all the time. I assume it is just that we don't have algorithms advanced enough to do it yet.

I doubt creative does either, though.
*

i never ever saw an 'improved' video either, so tell me about it please? (i must learn this secrets...)


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mandel
post May 19 2005, 16:19
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JensRex> You da bomb!
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Wish
post May 19 2005, 19:26
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http://www.stereophile.com/news/051605xtreme/

QUOTE
As Michael Fremer puts it, "Take a pile of hamburger and make a cow!"


laugh.gif laugh.gif laugh.gif
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seanyseansean
post May 19 2005, 20:17
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QUOTE (Wish @ May 19 2005, 07:26 PM)
http://www.stereophile.com/news/051605xtreme/

QUOTE
As Michael Fremer puts it, "Take a pile of hamburger and make a cow!"


laugh.gif laugh.gif laugh.gif
*



Good link. I don't usually agree with the rubbish on that site, but he hit the nail on the head.
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dreamliner77
post May 19 2005, 20:42
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QUOTE
The Creative X-Fi Xtreme Fidelity audio processor drives new applications that can enhance MP3s by bringing them back to 24-bit quality, and allows the user to upgrade the music to multichannel surround sound. This enhancement enables virtually all MP3 music to sound even better than it did on the original CDs."


Wanna buy some $2000 cables? wacko.gif


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Pio2001
post May 19 2005, 20:47
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Microsoft strikes back :

http://msdn.microsoft.com/library/default....temprofiles.asp

WMA 96 kbps is now better than CD quality laugh.gif
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Synaptic Line No...
post May 19 2005, 20:53
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I remember someone on the snes9x forums saying that letting his audigy resample to 96000 hz
made game sounds much better than 44100 or 48000.
Someone replied to the post saying the audigy interpolates sound,
going on to say that is why creative says the Audigy Makes Your MP3's sound better®
In other words if a 32khz sound was like this:
CODE
0      1      0      1      1      0     1     0

it would become like this:
CODE
0  0  1  0  0  1  1  1  1  1  0  1  1  0  0

I don't know how interpolation works with audio. But after reading this forum that seems like a bunch of hooey.
Is interpolation dithering?
What is dithering?

This post has been edited by Synaptic Line Noise: May 19 2005, 21:05
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NumLOCK
post May 19 2005, 21:05
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If audio DACs (digital-analog converters) had no analog lowpass filter, then upsampling and interpolation would help greatly. But all DACs have a lowpass filter.


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Digga
post May 19 2005, 21:13
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QUOTE (Pio2001 @ May 19 2005, 08:47 PM)
Microsoft strikes back :

http://msdn.microsoft.com/library/default....temprofiles.asp

WMA 96 kbps is now better than CD quality  laugh.gif
OMG blink.gif rolleyes.gif laugh.gif how bold can one get.


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NumLOCK
post May 19 2005, 21:31
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Well, a 20-bit white noise clip takes 0 kbps and could in theory, be much better than a cd quality clip.. if you're lucky smile.gif

This post has been edited by NumLOCK: May 19 2005, 21:34


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cabbagerat
post May 20 2005, 06:26
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QUOTE (Synaptic Line Noise @ May 19 2005, 11:53 AM)
I don't know how interpolation works with audio. But after reading this forum that seems like a bunch of hooey.
Is interpolation dithering?
What is dithering?
*

Is interpolation dithering? No. Interpolation is similar to resampling (or sample rate conversion) without the band limitation. Linear interpolation will not have a positive effect on the sound.

You can learn about what dithering is by reading Nika Aldrich's paper Dither Explained from Cadenza Recordings. It's an excellent paper.


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Defsac
post May 20 2005, 12:40
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QUOTE (Pio2001 @ May 20 2005, 05:47 AM)
WMA 96 kbps is now better than CD quality  laugh.gif
*

Anyone know a quick method of converting all my MAC files to WMA?


I kid, I kid. I wonder where one gets source audio to create these 'better than CD quality' 96kbps WMA files. Obviously not CDs, must be SACD or DVD Audio. Hell, maybe the recording studio encodes directly to 96kbps WMA and sends it to Microsoft before using it to create the master. Remember kids, quality increases exponentially with overbrightness.

This post has been edited by Defsac: May 20 2005, 12:53
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