From: Stainless Steel Rat <[EMAIL PROTECTED]>
To: MD-L <[EMAIL PROTECTED]>
Sent: Tuesday, March 07, 2000 2:35 AM
Subject: Re: MD: Sony's new Internet Audio Recording Interface
>
> * Stories <[EMAIL PROTECTED]> on Mon, 06 Mar 2000
> | Do you mean Compressing or Decompressing?
>
<snippage>
> [...]
> | Yeh but you don't want to emulate an ATRAC chip, you wana encode data to
> | ATRAC standard natively on a PC using a PC processor & software taking
> | advantage of chip specific features.
>
> Yes, and that requires many fast fourier transformations (FFTs) per
second,
> which as I said before are slow on general purpose processors. ATRAC 4 in
> real time is just not going to happen on the desktop for a while for that
> reason.
>
Strange - my old Acorn A3000 (RISC processor - 12MHz) seemed to cope happily
with many FFT transforms. I had a program called FastFFT on my Acorn and it
would perform some very complex calculations very quickly. I would expect a
modern PC to leave it behind with ease.
Winamp seems happy to do them too - it's how they make the little graphic
EQ.
Magic
--
"Creativity is more a birthright than an acquisition, and the power of sound
is wisdom and understanding applied to the power of vibration."
Location : Portsmouth, England, UK
Homepage : http://www.mattnet.freeserve.co.uk
EMail : [EMAIL PROTECTED]
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