Glitch, pop and stutter... just another bowl of cereal!

Well my friends this is my first post here and I am in need of some serious help! Ok, for the past week I have spent time trying to narrow down this problem I have with Logic.
I use Logic for the purpose of softsynths and up and till this point I have had no problem but about a week ago when I started Logic and opened up the 'minimoog' plug in it started to glitch, pop and stutter. I then tried sculpture and some other Logic based plugins and they too glitched, stuttered and poped. Now this only happened when I would play chords.
I tried using a different midi keyboard, that did nothing to change the stutter. I tried opening the minimoog plugin as a stand alone and ajusted the latency, I thought it helped a bit, but tried it again today and the problem is still there. I also tried changing the midi usb connector and did nothing to change the problem. I have searched through the preferences endlessly to see if there was somthing i could adjust, it mentioned to adjust the i/o buffer size, so I did from 512 down and up and still the same problem. I must point out that when I switched it down to the lowest buffer size it made the pops sound closer together and less like they were hicupping when at 512(?)
Its not Logic its the computer. I didn't touch or change anything within the computer to have this type of glitchy effect.My computer is a year old, what the **** is up?! Thanks if you have any suggestions. I am basically dead in the water right now with music making.
brandon

Matthew_Treder wrote:
In the past week there have been several important software updates, including ones for the MacBook Pro and all Pro apps. Worth making sure you're up to date.
http://www.apple.com/support/downloads/
Ok, this is not good advice as the problem is most likely with the update.
Since the problem started about a week ago I'm guessing the original poster has been using Apple's auto update feature and probably installed a firmware update as well as an airport update. Possibly they are one in the same, the firmware update is to address reliability with Airport.
I'm betting the original poster's problem is with Airport.
Disable Airport and see if the glitching stops.
This is yet another good reason not to blindly trust Apple updates, especially when running a DAW system. Logic is a complicated and resource intensive program, anything that changes key system components can affect real-time applications such as Logic. The update has caused a lot of problems, some studios got whacked out of business. Even after Airport is disabled processor usage is still higher than prior to the update.
pancenter-

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That said, I noticed that after enabling Alchemy and EAX effects, F.E.A.R. started to make popping and crackling noises. But, these noises wouldn't start immediately. It would take a couple minutes before I started hearing them, and it would get progressively worse and worse. Eventually, the game itself would start stuttering and it became impossible to play because of the choppiness.
I have never really experienced this with another game, and only noticed this behavior after enabling EAX effects. I have played F.E.A.R. before with no problems, granted, this was without EAX effects enabled.
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And the popping and crackling even continues after I exit the game, even in Windows, but to a lesser extent. And it seems to quit completely after a few minutes. Very strange.
Also, I tried disabling SLI and it did not seem to make a difference.
What is going on here? I just want to play this game with 5.1 surround sound and, preferably, EAX, because I do like the way it sounds. It's just that I can't play with EAX because it starts jacking up after awhile.
Edit: It seems that turning on "Hardware Mixing" enables discrete 5.1 channels. Without Hardware Mixing on, I only get stereo output from F.E.A.R. Is this correct behavior? I'm testing further to see if the popping and crackling occurs when Hardware Mixing is enabled (but not any of the EAX settings). I'll report back when I know.
Edit #2: After several minutes of playing with only Hardware Mixing enabled (and no EAX), no popping or crackling occurred. I will continue to test different combinations.
Edit #3: After more testing, it seems that I can use Hardware Mixing (which enables discrete 5.1 channels) and Advanced EAX HD together, which sounds absolutely fantastic. I believe that the problem is caused when I enable EAX 2.0 -- even if I immediately disable it, it seems like it actually starts causing a problem. So what I did was completely restart the game (and my computer) and ONLY enable Hardware Mixing and Advanced EAX HD making sure not to touch EAX 2.0 at all, leaving it disabled.
I've been playing for about an hour with no pops or crackles at all, let's hope it stays that way!
tl;dr - Turning on EAX 2.0 and Advanced EAX HD at the same time can cause undesirable results even if you turn off EAX 2.0. Restart the game (and perhaps your computer) to make sure that when you start the game, EAX 2.0 is completely disabled and ONLY enable HW Mixing and Advanced EAX HD.
Edit #4: Sadly, I am still noticing some intermittent popping, but after playing for awhile it never gets extremely bad. It is much less severe than earlier. Not sure where to go from here.

Originally Posted by Thalyn
Well, I found my copy of FEAR and loaded it up. Patched it to 1.08 (which meant re-downloading the patch, since the one I got before was the US version - mine game is apparently the UK one, which actually has a patch half the size) and fired it up.
Just for curiosity I didn't install ALchemy straight away. As I suspected, none of the advanced sound mode options were enabled, which means they've just got an overly complicated menu. It could have just as easily been one option called "Audio Processing" with "Hardware", "EAX 2.0" and "EAX Advanced HD" as the available options - no need for a "Software" setting since it would be disabled without any of those, and the others could be en-/dis-abled based on your hardware capabilities. Oh well - chalk that one up to poor menu design.
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I just noticed that I get popping, crackling, and eventually game-freezing in Left 4 Dead 2, as well.
I used Alchemy to enable EAX for Left 4 Dead to (I read in the FAQ on Creative's Alchemy page that you could enable it for source engine games), and while playing, I starting hearing pops and stuff just like as in F.E.A.R. Eventually, the game started lagging as well (like in F.E.A.R.), and I had to quit out. It even persisted in windows for a bit as I would notice it when changing the volume and hearing the little "ding" with a pop or crackle in it. I restarted my computer.
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Also, how do I check my version of Alchemy? Could I not use the software update to get the latest version?
Edit: I just tried the software update. It said that my version of Alchemy is 1.41.02, and that I have the latest version installed.
Do different versions of Alchemy exist for different Creative cards? For example, perhaps 1.41.02 IS the most recent version for my x-fi titanium, but not for your recon3D.. Or can I use any version of Alchemy? Maybe getting the most recent version would fix my problems.
Edit #2: I found version 1.43.06 of Alchemy. I went to the x-fi titanium's page on Creative's site and clicked on "beta application", and it was there. Downloading/installing now and testing.
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