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strange on-and-off phenomenon when playing back..

EZdrummer Help
Viewing 4 replies - 16 through 19 (of 19 total)
  • Replied June 8, 2010 at 23:16 #1935874
    Dave Modisette
    Participant

    To answer your question, yes, basically.

    Actually, that’s a no.  I’ve seen projects brought to me with Guitar Rig and audio tracks will disappear in spots.  No reason what so ever and then one time the audio will appear again.  Then the next time it’s gone.

    What we have to do is to rule out any other thing but Superior to make sure that it is 100% a Superior issue.  If we can’t do that then we find out what the common denominator is to make Superior drop notes so that we can make a 100% reproduceable recipe to give to the developers.  If you give these guys a recipe to create a problem they do their quickest work.  (Assuming it’s not a configuration or 3rd party issue.)

    Dave Modisette www.gatortraks.com www.plasticsamerica.com http://www.gatortraks.com/forum

    Replied June 9, 2010 at 05:09 #1935892
    RandyMorter
    Participant

    Well I partly solved my problem described above…

    I downloaded the MS hotfix for the 1394 driver (http://support.microsoft.com/kb/981613) per a suggestion on the PreSonus forum. I think that helped some with the latency, which helped with EZD.

    I found that if I have latency too high various notes on EZD will drop off. Just by lowering the latency EZD would consistently play all notes without dropout. I saw a YouTube today that also led me in that direction.

    Now I don’t think there’s any issue w/ EZD on my system other than I have to figure out my latency issue. I’m not sure the hotfix did much. My PC uses an LSI chipset for the FireWire. I guess I’ll go get a card with a TI chipset next.

    HP e9120y PC w/ AMD Phenom II X4 910 (Quad Core) running at 2.6 GHz, 8G RAM, 7200 RPM 500G recording drive, 5400 RPM 1T OS, Applications & Backup drive, Windows 7 64 Bit, Sonar Producer 8.5.3 64 Bit, PreSonus Project (FireWire) 10 Channel I/O

    Replied June 9, 2010 at 16:35 #1935903
    RandyMorter
    Participant

    Hi John and Dave –

    I didn’t see your replies when I made my last entry.

    John – I do have the latest PreSonus driver, the Win 7 / 64 bit driver. I actually went from Vista to Win 7 because they came out with the driver. Their previous driver didn’t work on my box with Win 7. As for the ASIO settings, I’ve tried setting it at most combinations available through their Universal Control – Normal to Safe Mode 3 and various buffer sizes. As I mentioned before it was when I lowered the buffer size that the EZD started playing better (but I can’t monitor or record at those lower buffer sizes without dropout).

    Dave – I’ll try what you suggest, a new project with only EZD. I wasn’t aware Guitar Rig had problems. It’s seemed pretty stable to me (except I can’t get the 64 bit stand-alone host to work). If it makes a difference, I don’t use the foot pedal, just the software. I have read on their forum (or somewhere) that some people do have problems with GR, I just haven’t.

    In fact, when I first got this PC it had Vista. I had no problems with EZD, latency in Sonar, and could run 4-5 GR instances, 3-4 Lexicon Pantheon reverbs, plus other plugins, perhaps 20 or so total, without any issue. I went to Win 7 when PreSonus came out with their new driver. According to what I’ve read, Win 7 seems like it should be better (based on some info on a Cakewalk page). But frankly it seems like I’ve had problems since. I’d like to get it to run on Win 7, and will try the TI chipset FireWire card, but if that doesn’t work I’ll just go back to Vista.

    Thanks to both of you!

    Randy

    HP e9120y PC w/ AMD Phenom II X4 910 (Quad Core) running at 2.6 GHz, 8G RAM, 7200 RPM 500G recording drive, 5400 RPM 1T OS, Applications & Backup drive, Windows 7 64 Bit, Sonar Producer 8.5.3 64 Bit, PreSonus Project (FireWire) 10 Channel I/O

    Replied June 10, 2010 at 03:20 #1935927
    RandyMorter
    Participant

    Hi Dave,

    I tried the EZD project only, and installed a SIIG / TI FireWire card, and things seem to be okay. But I think the biggest difference was going into the Sonar > Options > Global > MIDI Tab and setting the Playback buffer up to 500 mSec. That’s evidently the size of buffer used to look ahead and process MIDI by sending it to the instrument module.

    When I went back to my original project that I was having problems with it ends up having higher latency for monitoring a guitar track live BUT EZD played flawlessly! The Sonar > Options > Audio > General Tabl says I’m now running at 392 samples / 8.9 mSec. I think in reality it ends up being a bit more because I hear a delay between my picking and when the notes are rendered, I’d guess 15 – 20 mS.

    But I can’t complain, this project has 24 tracks and 5 busses with 3 GR 4 (running in HI FI mode), 22 other VST’s including 3 Lexicon Pantheon reverbs, 1 Cakewalk PerfectSpace convolution reverb, Jeroen Breebaart limiter, and of course, EZdrummer itself. I think that even though the CPU monitors still only show about 50% it may actually have been buffer sizes (aside from the ASIO buffer) that may have been the culprit. I don’t know for sure, but it’s working better now.

    I sure do thank you for your interest and help.

    Randy

    HP e9120y PC w/ AMD Phenom II X4 910 (Quad Core) running at 2.6 GHz, 8G RAM, 7200 RPM 500G recording drive, 5400 RPM 1T OS, Applications & Backup drive, Windows 7 64 Bit, Sonar Producer 8.5.3 64 Bit, PreSonus Project (FireWire) 10 Channel I/O

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