Pops/Glitches/Dropouts Caused by ACPI

Hey everyone,
So to keep this short, i have a seperate boot partition with Windows 7 64 bit installed. I use this partition solely for DJing, therefore i have installed; itunes, my DJ software, and windows updates. I use an external USB soundcard for routing
the sound from the dj software to my speakers.
The problem im having is the DPC latency spikes that are caused by ACPI.sys which as a result cause pops and clicks in my audio playback. When ACPI is disabled in device manager, the spikes go away and audio playback is fine. However, when i do this
i cannot keep an eye on the status of my battery etc and ive heard that my system will underperform with it disabled.
Therefore i am writing to seek a profesional opinion as to the best way to go about this problem. I have racked my brain/the internet for a year to find the answer but cant seem to figure it out. I have seen some solutions that may work, but wanted
to know also if this would work on my laptop:
Option 1: Install XP as a standard pc (can this be done with 64 bit)? CAn it be done at all?
Option 2: Install windows 7 with ACPI disabled in the BIOS? Would this even work?
Option 3: Disable acpi.sys. Dont really want to do this because of the lack of battery management.
Sys specs:
Core Duo Processor @ 2.66ghz
4GB RAM
Gefore 9650M GT 1GB Graphics
Windows 7 64 Bit
Thanks in advance for any help you may be able to provide!

God i wish that were the case! I run the laptop in High Performance ALL the time, regardless of being connected to power supply or not. As i need all the power i can get for graphics etc.
I know for sure that the spikes are caused by the acpi.sys as it has been discussed on many other digital DJing/music production forums (and the spikes disapear when its disabled). Apparently the problem is caused because the sound card is allowed to share
IRQ's with other USB devices, (this is why people have suggested running windows with acpi disabled so a different IRQ can be assigned to each device, bear in mind im not THAT knowledgeable about the inner workings of a computer so dont know if this
is true).
This is something that im surprised hasnt been brought up before on these forums to be honest! I would have thought its a problem which has roots deep in the inner workings of the computer and im sure theres no solution but its worth a try!

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God i wish that were the case! I run the laptop in High Performance ALL the time, regardless of being connected to power supply or not. As i need all the power i can get for graphics etc.
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Photo App. See other people frustrations on this issue, its been going on since April!!!! please can you fix this is ruining my Windows Phone experience:
MICROSOFT / NOKIA SEE LINKS TO VIDEO OF SOUND POPPING ISSUE BELOW !!!!!
http://forums.wpcentral.com/ask-question/296892-popping-sound-when-navigating-through-media-lumia-1520-a.html
http://forums.wpcentral.com/windows-phone-8-1-preview-developers/278439-must-read-lumia-920-owners-running-8-1-whatsapp.html
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Hello,
You should ask in the
Windows Phone forums on the Microsoft Community forums.
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Pre-blacking a tape to avoid timecode breaks doesn't work. It is a myth. All it does is prevent your footage from starting over from 00;00;00;00. But if you record, then stop the camera to review, then stop AFTER the recorded footage, you will have a timecode break. Video cameras don't INSERT EDIT onto the tape, they ASSEMBLE EDIT. That is, they write over everything that was recorded before, including timecode. So blacking a tape does nothing, really. Only give you better chances to incur tape dropouts as you are now recording on the tape twice.
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Logic Audio Setttings

nope not yet. I'm going to go home and try a few things, first i'm going to REstart my computer. I'm going to compare different projects to the one i'm having issues with. Make sure it is just specific to the project. If not, then I have something more serious happening that is now affecting projects that were fine in the past. Then I will also see about using Logics Duet mixer as opposed to Maestro. Also, BIGGY< i need to see that the crackling is still there in the tracks when playing through the Built in Audio. This will help distinguish if this is hardware based issue or not. And although i think i'm current, i'm going to double check and reisntall the newest DUET driver. IF these other things don't work. I'm just at work so i haven't been able to really get under this problem yet. BUt i've gotten good ideas on what to try.

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The most likely issue is the codec that your program is using the create your video. It's apparently not compatible with Premiere Elements.
This often happens also when people try to record their on-screen video with FRAPS.
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Thanks,
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Edited by: Shobhit Swarup Mathur on Jul 14, 2009 9:29 AM
Edited by: Shobhit Swarup Mathur on Jul 14, 2009 9:29 AM

Hi Shobhit
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804102
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810238
XI 3.0 Mail Adapter for POP3 may not report some errors
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Connection refused occures when XI cannot connect
in most cases so try checking it again , maybe some ports are not opend on the firewall
Thanks
Edited by: Abhishek Agrahari on Jul 14, 2009 11:44 AM

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http://www.flickr.com/photos/goochrules/3049656804 (can i get this image to display inline in my post?)
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Message was edited by: Matthew Peltzer

Thanks for the reply!
I've tried to unplug everything (before was plugged only a4tech mouse and HP printer), and reboot the system. Nothing helps . i've performed reboot about 10 times. Also I've tried to reset SMC (unplug power cord for 15 sec, then plug 5 sec after, cmd opt p r) so sad. I can't use apple service in my country because of lack of service at all, only unofficial... Anyway thanks for replies... I will try to find the way to transport iMac to the nearest country with an apple service.... So sad, it was never happened with me, first critical issue with an apple device.

Pops/Glitches/Dropouts Caused by ACPI

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