EXS 24 Logic Sampler Users Group

Hi,

Bernard wrote,
> Is it just me ? But when I convert a Roland patch to the EXS24 format with

> and without the deemphasis and even though I see "de-emphasizing sample"

> on the progress window, every time both .wav files sound exactly the same.

> I don't trust my ears enough, so I used Wavelab to compare the original
> sample and the de-emphasized sample and there is not a single bit of
> difference between the 2 files. A pure placebo effect !

Well, there are quite a few options for the Roland Emphasis curves.  I don't
recall what the default settings are but there are a few options.  You can
have the authentic Roland curve, darker, lighter, standard (Translator's original
curve for Roland coversion), special and custom.  It can also be enabled or
disabled as well.  Is it possible that perhaps it is disabled but a message
is displayed where it normally applies the de-emphasis?

I tried it out when I first got Translator and it worked fine for me.  I didn't
compare it to a S-760 (as I don't own one anymore) but there *was* a difference.
 I'll have to remember to try it out again tonight when I have some time.

Interesting that you're trying to make a wave here when you are the developer
for Translator's main competition. I'm sure Garth could be here and other places
trying to point out things that he may have found in your product but I don't
see him doing that.  Hm-m-m-m

Fernstudio
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In a message dated 3/25/02 11:18:28 AM, exs@... writes:

>Is it just me ? But when I convert a Roland patch to the EXS24 format with
>and without the deemphasis and even though I see "de-emphasizing sample"
>on the progress window, every time both .wav files sound exactly the same.
>I don't trust my ears enough, so I used Wavelab to compare the original
>sample and the de-emphasized sample and there is not a single bit of
>difference between the 2 files. A pure placebo effect !

Bernard...your Roland deemphasis in Cd-Xtractr doesn't work 
correctly...that's why there's no audible difference in the files. The Roland 
emphasis curve is HUGE (about 20db at 18k) so it is VERY audible and easily 
measurable. This is why we have used Translator for this conversion in the 
past, Garth has a lot of different versions of the Roland de-emph curve that 
have been tweaked by ear as well as by scope. You can't do it properly by 
numbers alone. The info that Roland has for documentation of the curve is 
incomplete to do it this way.

This is an area that should be improved in Cd-Xtract in my opinion. (Try it 
with a Cymbal and you can hear the difference VERY easily). It's no 
placebo...that's for sure!

Eric Persing
Creative Director, Spectrasonics
Chief Sound Designer, Roland Corp