EXS 24 Logic Sampler Users Group

Hi, anyone else experience this problem?  I have a large (200+gig) library of EXS 
instruments.  If I put the entire library in the Sampler Instruments folder, the EXS sees all 
the instruments but when I select one to load---nothing happens.  Samples don't load, 
EXS remains mute and the instrument name is not displayed.  If I take some of the library 
out of the Sampler Instruments Folder, everything is back to normal.  Doesn't matter which 
stuff I take out.  I'm not sure if there is an exact threshold- (either in the # of instruments 
in the folder or the amount of data in the folder?)  Putting aliases of the instrument folders 
in there instead of the actual folders does not help.  This is a wierd one, and emagic tech 
support has no idea.  ??????????
-mike

Folks, any help to optimize my system for HEAVY EXS24 use would be greatly
appreciated. I'm getting crackling and Core Audio overloads. I am running
all 64 instruments which are all EX24 except for one EVB3 and one EVP88. I
have trimmed my polyphony as best I can. My Logic file has 1.27GB of
samples! And I'm using one instance of Space Designer.

I am re-encoding the picture I'm scoring to to a smaller size.

So, it's safe to say that I just might be pushing my luck, here. Regardless,
here are my particulars:

Sawtooth Powermac, upgraded with dual 1.3GHz G4 processors, 2GB RAM, 7200rpm
(2MB cache) drives, Radeon 9000 Pro GPU, Hammerfall Light card. Panther
10.3.3 (haven't upgraded to 10.3.4 yet. Would it help??). I have killed as
many processes as I can to the extent that I am able to understand their
function (UNIX! WHOA!), and have disabled all third party pref panels, with
the exception of my mouse driver (using USB Overdrive).


Logic Pro 6.4.2.

Core audio drivers configured as:

Track count: only four
512 I/O buffer
64 busses OFF
Software Monitoring on
LARGE process buffer range
Larger disk buffer enabled
Rewire behavior: "Playback Mode" (less CPU load). I am not using Rewire.
 

EXS24mkII preferences:

Sample rate conversion: normal
Sample Storage: 32 bit float

Now, here's the one I don't know about -- and is coincidentally ABSENT from
the manual: the EXS24 TDM mode setting. As I am not using TDM, what is the
best setting for this parameter that would result in MORE JUICE for native
EXS ? "Strong"?

Also, despite me using the 32 bit float which loads all the samples into
RAM, the System is STILL having to resort to virtual memory (no surprise
there). In light of this, does it matter whether I'm set to 32bit float or
not? Will the processor still get a little bit of a break if I leave 32 bit
float ON?

Any help would be GREATLY appreciated :)

On 30/05/2004, at 4:13 AM, Mac Duff wrote:

> Folks, any help to optimize my system for HEAVY EXS24 use would be 
> greatly
> appreciated. I'm getting crackling and Core Audio overloads.

Start freezing are even bouncing your tracks to file...

michael

On 5/29/04 5:50 PM, "Michael Scheurer" <lists@...> wrote:

> On 30/05/2004, at 4:13 AM, Mac Duff wrote:
> 
>> Folks, any help to optimize my system for HEAVY EXS24 use would be
>> greatly
>> appreciated. I'm getting crackling and Core Audio overloads.
> 
> Start freezing are even bouncing your tracks to file...

Yeah. That's a  bit of a hassle as one is trying to write the music, though
:(

A workaround I have found that reduces the occurrence of crashes is to play
(just bash some cluster chords) on a bunch of the instruments while stopped
to "prepare" Logic for the task ahead of it. Doing this seems to cause Logic
to load the samples out of OS X's virtual memory and into RAM. I think that
is my problem, because I'm not talking about DENSELY programmed sequencing;
it's just that the sound template I have assembled in RAM is HUGE. You can
see how much virtual memory I am being forced to use in the screenshot,
below. And THAT's with 2 gig of RAM installed!

So, when I do bash the keys around, the program plays all crackly at first
and my CPU meter jumps to life. After a few seconds, however, things settle
down and the program becomes fully usable. Doing this across several
instruments can't prevent some Core Audio overloads, but at least the
crashing has been reduced (not eliminated).


http://members.rogers.com/dropzone/2gigLOADED.jpg