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Stereophile magazine reviews the iPod


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#1 of 6 Allan Mack

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Posted October 17 2003 - 08:22 PM

I never thought I'd see a high-end stereo magazine review an MP3 device. The October 2003 issue of Stereophile magazine gives the iPod a glowing review:

http://www.stereophi...rchives.cgi?934

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#2 of 6 Scott L

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Posted October 18 2003 - 07:04 AM

ooo didn't know AAC can compress hi-res audio with a 96kHz samp rate. Posted Image Nice article!

#3 of 6 Pete_S

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Posted October 19 2003 - 07:25 AM

As far as iTunes for Windows is concerned, it seems you can only encode AAC up to 48kHz. I tried converting a 16-bit (iTunes wouldn't even open a 32-bit) 96kHz wave at 192kbps and auto sample rate (other options were 44.1kHz and 48kHz) and iTunes spit out a 48kHz file at about 1/3 speed (a 2:53 song turned into 9:07).

Nero 6's built-in support for AAC produced similar results. The track again seemed to be about 1/3 speed, but the file was simply cut off once the 2:53 mark was reached.

If 96kHz is indeed possible in AAC, I wonder what software is available that will encode it?

#4 of 6 TyC

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Posted October 19 2003 - 01:43 PM

So AAC supports 96kHz but not surround sound?
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#5 of 6 Scott L

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Posted October 19 2003 - 03:56 PM

Quote:
I tried converting a 16-bit (iTunes wouldn't even open a 32-bit) 96kHz wave at 192kbps
Do you mean 24-bit here?

#6 of 6 Pete_S

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Posted October 19 2003 - 04:26 PM

Scott L,

Nope, 32-bit was right. A double-check reveals that Windows XP recognizes the file as 24-bit (which may be my problem), but programs like Sound Forge 6 and Cool Edit Pro recognize the file as 32-bit.

I recently got a new turntable and soundcard, and I've been experimenting with different bitrates and sample rates to see how they effect the end result (16-bit, 44.1kHz for CD). In my limited experience, the click/pop reducer in Cool Edit Pro seemed to do a better job when it had a 32-bit file to work with. Anyway, that's a whole 'nother thread. Posted Image




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