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Re: Fw: EDP Oversampling

I was just curious since comparing the sound of an older Akai S2000 sampler
against the sound of a newer S5000 sampler.  Although both are 16-bit
samplers, the older model sounds "grittier" when you pitch samples down or
resample to a lower bandwidth.  The EDP sounds gritty, too, when you shift
into halfspeed.

As I understood that article it was saying that during the D-A conversion
the oversampling process was the interpolation of in-between samples into
the signal to smooth the waveform out.

Just trying to figure out what makes that sound sound the way it does.  If
you say it's the anti-aliasing filters that matter, then I believe you.
Thanks for the info.


----- Original Message ----- 
From: "Kim Flint" <kflint@loopers-delight.com>
To: <Loopers-Delight@loopers-delight.com>
Sent: Wednesday, June 23, 2004 11:00 PM
Subject: Re: Fw: EDP Oversampling

> I really don't see how oversampling would matter to you at all. It is a
> technique used in designing D/A convertors to make the anti-aliasing
> requirements easier to implement. (as the link you gave explains). It
> doesn't mean anything to the user. It doesn't even mean much to an
> designing with a given D/A convertor part since the filters are usually
> integrated.
> The anti-alias filter characteristics are the important thing to care
> about. Oversampling doesn't guarantee that the anti-alias filter is good
> bad, and if oversampling is not used you can still get equally good audio
> results with higher order filters. It really doesn't tell you anything by
> itself.
> Companies list oversampling in audio specs because it sounds good to most
> people who are clueless as to what it means, but really it's just
> kim
> At 02:29 PM 6/23/2004, Jesse Ray Lucas wrote:
> >Curious.  All the Akai and Yamaha samplers mention oversampling in their
> >specs, and those are contemporaries of the EDP hardware.
> >
> >For more info see:
> >
> >-J
> ______________________________________________________________________
> Kim Flint                     | Looper's Delight
> kflint@loopers-delight.com    | http://www.loopers-delight.com