1100us is pretty high for audio work and will cause you to have to have your buffers set higher than you would need on a better DPC latency system.

you may have background (memory resident) programs running which could cause this, or, as I said above, it could be a problem with your graphics card software/drivers.  what I did was disable my radeon software in msconfig, then ran the DPC latency checker again and everything was down in the 50us average.

there could be other issues with other programs or drivers causing that high DPC latency as well.

using the TI chipset is good.
 
BTW - I'm also in church ministry.  I'm not paid staff, though, just a volunteer.  check out my website and music links in my signature when you get a chance...

musmin2415, as Beagle said, you want to use the "T.I. XIO2213" Firewire (which I assume is your IOCREST FW card) for connecting your Presonus Firestudio Project interface, not the "VIA 6307/08" (which is the onboard FW controller on your motherboard). See this info:

http://support.presonus.c...st-for-Firewire-cards-

Avoid using the onboard VIA FW (if possible, disable it in your BIOS setup). It is a PCI FW chip using a "bridged PCI" connection (because your Gigabyte Z77 motherboard only supports PCI Express and "bridged" PCI, not "native" PCI) which can cause performance issues. 

The T.I. XIO2213 chip on your IOCREST PCI Express FW card is better in that respect, and is listed as compatible with your Presonus interface.

If your IOCREST card only has FW800 ports, you'll need a 9-pin to 6-pin FW cable for connecting your Presonus interface, but I'd guess it probably has a 6-pin FW400 port you can use (if you aren't doing so already?).

Regarding your DPC issue, try running Latencymon:


http://www.resplendence.com/latencymon

which offers more detailed info than Thesycon's DPC checker (I'm confident you'll read the info on that site including the FAQ for guidance on how to use it).

Have faith, help is at hand!

Beagle


you may have background (memory resident) programs running which could cause this, or, as I said above, it could be a problem with your graphics card software/drivers.  what I did was disable my radeon software in msconfig, then ran the DPC latency checker again and everything was down in the 50us average.

there could be other issues with other programs or drivers causing that high DPC latency as well.

Yeah, let me go ahead and do that & give it a shot.  I really can't see any other software being the issue because my rig is pretty much dedicated solely to audio/video projects.  So, I keep my PC fairly 'clean'.

 
Beagle


BTW - I'm also in church ministry. I'm not paid staff, though, just a volunteer. check out my website and music links in my signature when you get a chance...
 
 

Will do man!  Thanks!!

Goddard


musmin2415, as Beagle said, you want to use the "T.I. XIO2213" Firewire (which I assume is your IOCREST FW card) for connecting your Presonus Firestudio Project interface, not the "VIA 6307/08" (which is the onboard FW controller on your motherboard). See this info:

http://support.presonus.com/entries/21766827-Is-there-a-Firewire-Compatibility-List-for-Firewire-cards-

Avoid using the onboard VIA FW (if possible, disable it in your BIOS setup). It is a PCI FW chip using a "bridged PCI" connection (because your Gigabyte Z77 motherboard only supports PCI Express and "bridged" PCI, not "native" PCI) which can cause performance issues. 

The T.I. XIO2213 chip on your IOCREST PCI Express FW card is better in that respect, and is listed as compatible with your Presonus interface.

If your IOCREST card only has FW800 ports, you'll need a 9-pin to 6-pin FW cable for connecting your Presonus interface, but I'd guess it probably has a 6-pin FW400 port you can use (if you aren't doing so already?).

Regarding your DPC issue, try running Latencymon:


http://www.resplendence.com/latencymon

which offers more detailed info than Thesycon's DPC checker (I'm confident you'll read the info on that site including the FAQ for guidance on how to use it).

Have faith, help is at hand!

Now THIS makes sense to me - I'm actually starting to understand! :-) I'll check everything out and get back to yall.  Thanks so much for your patience, man.

Just thought I'd give an update on what's going on & what I've tried so far:

Still having some issues.  But I found that I can't run "Speccy" (a freeware program that analyzes what's going on with your system - internal temps, how hard your CPU is working, etc.) because it runs up my latency readings.

Also, I went into my device manager and disabled my "IEEE 1394 host controllers", which leaves just me TI Chipset.

I have not disabled my AMD card yet.

I'm also looking at my msconfig and trying to figure out what services I need and which ones I don't.  What's really jacking with me is that all these 'Creative Labs' and 'Cyberlink' services are running which I'm wondering if they're really even necessary since they all have to do with either audio or video. Here's a quick list of what I'm going to look up and see if I need:
- AMD External Events Utililty
- Creative Audio Service
- Cyberlink RichVideo Service


I'm still planning on investigating the timestamp issue, but I'm not really convinced that that's the issue.  Because when I'm recording, the problem doesn't seem to be like if I'm playing at 119bpm & and another internal clock is running at 120bpm so we slowly over time start getting off.  It's more like after about a minute of recording that my midi is "bottle-necking" and a huge delay happens with the key response.  I'm probably misunderstanding the time-stamping issue that was mentioned above, so I'll still check into it.

Now I'm currently running LatencyMon and reading all the info at its website so I can figure out what I'm actually looking at.  Latency is still peaking pretty high (and all I have open is Chrome), and plus my 'hard pagefault resolution count' is completely pegged-out.  But like I said, I'm currently researching the FAQs and figuring out what this whole analysis is telling me.

EDIT:
Looks like (just from an initial glance) that HDAudioBus.sys is causing some ISR issues, and msmpeng.exe is causing some Hard pagefaults.

That's it for now! 

Do you mean HDaudBus.sys?
If yes, have you disabled your internal audiocard, which can be done your Gigabyte motherboard BIOS. 



How are the DPC reading? I see you have about 1100us (which is high) but is is stable at that level or do you have high/low peaks?

Disable the Creative stuff, very well documented problem child. 
When you use a proper audio interface you should always disable all other audio devices. Some don't but most will interfere with your good audio system. And Creative is well known to be one of the culprits. 

Also it is normal to try shutting down the internet on your DAW. 
Most of the background processes won't make a difference to the DPCLAT readings. 
In the msconfig utility you can toggle "hide all Micro soft " and that makes it easier to see the 3rd party stuff. 
Look for things like Adobe, Creative, and any updaters for software. 

A note about True Pianos. 
I was hearing a delay when I exported it in a mix. I had to freeze the track to get it to sound in time. It's the first time I noticed this and I havn't used true pianos a lot in the past. But I think it's a heavy user. 

kristoffer


Do you mean HDaudBus.sys?
If yes, have you disabled your internal audiocard, which can be done your Gigabyte motherboard BIOS. 

Yes that's what I meant - sorry.  And now that I think about it, I did turn off some of my internal audio card functions just through Windows and chose my Presonus FS as default, but all the processes won't be disable completely until I do it through the BIOS.  Correct?

kristoffer

How are the DPC reading? I see you have about 1100us (which is high) but is is stable at that level or do you have high/low peaks?
 

Well, since I stopped running "Speccy" and made some other changes that I mentioned above, the readings have been better.  (I can't tell you what right now, because I haven't been able to get down to my studio for about a week now.)  But I still want to make sure I'm making the changes mentioned in this thread in order to optimize my midi performance --- disabling all unnecessary process/software, checking all the internal audio settings, etc.

Cactus Music


Disable the Creative stuff, very well documented problem child. 
When you use a proper audio interface you should always disable all other audio devices. Some don't but most will interfere with your good audio system. And Creative is well known to be one of the culprits.

Thank you!  Now that you mention it and as I was digging deeper into other threads, I did notice that Creative tends to have its nose in everything. 

Cactus Music 

Also it is normal to try shutting down the internet on your DAW. 
Most of the background processes won't make a difference to the DPCLAT readings. 
In the msconfig utility you can toggle "hide all Micro soft " and that makes it easier to see the 3rd party stuff. 
Look for things like Adobe, Creative, and any updaters for software.
 

Yep, I'm not sure why I didn't think of that before.  Especially since I'm wireless, I'm sure that can't help the situation.  And I'll take your suggestion in msconfig as well.  Thanks so much!
 
I'll try to get back with an update as soon as I can get back down to the studio again.

You should run this handy little app. It will show you if you have interruptions. Try it with your wireless card on,,, you'll see what we mean about all this. 

http://www.thesycon.de/deu/latency_check.shtml