Timing issues with EW Play 3 & larger audio buffer ?

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cliffr
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2011/10/31 22:18:37 (permalink)

Timing issues with EW Play 3 & larger audio buffer ?

Hi folks,

I noticed that timing seemed to be out when I bounced down some tracks using EWQL Pianos.
It seems to get much worse as you increase the audio buffer size.

I'd increased the audio driver buffer size after adding verbs etc, and WOW - sounded like the pianist was drunk !.


Can anyone confirm the same behaviour ?.

I started off with my audio buffer at 128 samples, and all seemed pretty good while tracking.

Then when adding effects and mixing I had to increase the audio buffer size to avoid pops/clicks etc, and as I did this,
the pianist got drunker and drunker, until he couldn't hit a single not in time.

I swapped him out for a Kontakt pianist - he was sober and played just fine.

It looks like it's a "Play 3" problem - I swapped back to some different Play 3 instruments, and they all exhibit the same
"Sloppy Playing" on my system.

Bigger audio buffer sizes of 1024 and up make this REALLY Bad !.

Is anyone else seeing this ?, or is it something to do with my set up ?.
I've checked every setting I can think of, and can't find anything that I think would cause this.

Thanks for any help.


Cheers - Cliff

i7-950 24 GB, GTX 580, W7/64 Ultimate, Sonar Platinum, Alesis MasterControl, KRK Rokit RP8g2s
Some Real piano, basses, and guitars, Komplete 8Ultimate, Ibanez guitars, MusicLab RG/Strat/LPC, Trilian, Omnisphere, RMX, EWQL SO Platinum, Pianos, Choirs, VOP, Gypsy, Goliath, SD2, MOR, Ra, HS, HB, too many plugs, Midi controllers, and all kinds of weird gadgets
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    CJaysMusic
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    Re:Timing issues with EW Play 3 & larger audio buffer ? 2011/11/01 00:22:30 (permalink)
    the pianist got drunker and drunker, until he couldn't hit a single not in time.

    You need a low buffer when triggering midi live. also some plugins that are meant for mixing will introduce latency, like perfect space and the LP's.
    If your pianist wants to hear the notes as he triggers them, you neeed to lower your ASIO buffer or WDm slider and/or take off those mixing plugins. Theres no way around it.
     
    Cj

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    #2
    brundlefly
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    Re:Timing issues with EW Play 3 & larger audio buffer ? 2011/11/01 02:56:12 (permalink)
    Bitbridge has a bug that will cause that with at least some synths. I would have thought EW Play is native x64, but maybe not, or maybe not the version you're running...?

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    cliffr
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    Re:Timing issues with EW Play 3 & larger audio buffer ? 2011/11/01 02:56:43 (permalink)
    Hi CJ,

    I hear what you're saying, but I'm not actually talking about playing live - this is straight from pre-written MIDI tracks and it happens
    even with the tightest quantized input.
    It really does sound like a drunk player, it's all over the place, slipping behind and then lurghing forward, then it might thow a bit of swing for ya :-)


    It's been bugging me all day this one.
    So far it only seems like it's with the EW Play stuff. I'm just downloading their latest update to see if that makes any difference.

    Most everything else I've checked VST wise,  I can drive from the same MIDI track and they keep perfect time.
    I know the lag you're talking about when playing live, but even that's more consistent than this drunken bum.

    Once I get this update downloaded I'll see what happens and do some more testing - try 8.5.3, different projects etc.
    I only had limited time this morning, so I'll do the update first and report back.


    Cheers - Cliff


    i7-950 24 GB, GTX 580, W7/64 Ultimate, Sonar Platinum, Alesis MasterControl, KRK Rokit RP8g2s
    Some Real piano, basses, and guitars, Komplete 8Ultimate, Ibanez guitars, MusicLab RG/Strat/LPC, Trilian, Omnisphere, RMX, EWQL SO Platinum, Pianos, Choirs, VOP, Gypsy, Goliath, SD2, MOR, Ra, HS, HB, too many plugs, Midi controllers, and all kinds of weird gadgets
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    brundlefly
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    Re:Timing issues with EW Play 3 & larger audio buffer ? 2011/11/01 03:04:10 (permalink)
    The Bitbridge issue I mentioned would be a fixed offset equal to the buffer size, not the variable delay you're describing.

    That sounds more like maybe the MIDI Prepare Using buffer being too low. Try 500ms if it's lower than that, and increase in increments of 100. If you get to 1000, and still have a problem, that's not it.

    SONAR Platinum x64, 2x MOTU 2408/PCIe-424  (24-bit, 48kHz)
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    cliffr
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    Re:Timing issues with EW Play 3 & larger audio buffer ? 2011/11/01 19:26:44 (permalink)
    Hey thanks guys for all the suggestions,

    I tried them all plus a plethora of others - took me hours !

    It's definitely a "Play 3" thing I'm hearing here, nothing to do with Sonar at all.

    And I may never have noticed this weird timimng anomaly if I hadn't been doing a solo piano piece.
    I only really noticed because I was tweaking the tempo map and playing with reverbs, which gave me a couple of pops & clicks.
    That lead me to pump up the audio buffer size, which made the issue really flaming obvious.


    I've updated Play 3, and tested all kinds of permutatiuons and loading only a single VST in a new project.
    Same results every time.

    It's certainly not a show stopper, but it's a very odd thing indeed.


    I put together several MIDI clips and tried all permutations and settings in both Sonar and Play 3, and nothing changes no matter what.
    I scoured all the manuals, diddled with all the settings and tried X1 and 8.5.3 both 32 and 64 bit - behaviour is the same in all.


    There are a few things I found interesting about this.

    1)   If you bump the audio buffer size up to something really big - like 2048 or 3072 samples, it sounds like the tempo is varying - but it's not.

    What is actually happening, is some notes get behind, and then it 'lurches' forward to catch up.

    If I insert a different VST - for example a Kontakt piano, and send the same midi data simultaneously, I can hear the 'other VST'
    play perfectly in time, while the audio from the EW Play jumps all over the place.


    2)   If I create midi tracks with patterns of straight timimg - eg: just 8th notes playing something like a root note followed by the chord,
    the way the Play 3 instrument timimg fluctuates also forms a pattern - the fluctuation ends up sounding predictable.

    So I'm wondering if this has anything to do with some of the "smarts" built into Play 3 - you know, the stuff to make it sound more "Natural and Real".
    Like making some difference to each repeated note, to avoid the "machine gunning" type of sound ?.
    I wonder, because it seems like you can't turn that off on QL Pianos like you can in Symphonic Orchestra with the "repeat" button.


    I've got a support ticket logged with soundsonline now anyway, so I'll update this if I get any more info.

    And after all that, I'm thinking of using a different piano for this project now :-)


    Cheers - Cliff

    i7-950 24 GB, GTX 580, W7/64 Ultimate, Sonar Platinum, Alesis MasterControl, KRK Rokit RP8g2s
    Some Real piano, basses, and guitars, Komplete 8Ultimate, Ibanez guitars, MusicLab RG/Strat/LPC, Trilian, Omnisphere, RMX, EWQL SO Platinum, Pianos, Choirs, VOP, Gypsy, Goliath, SD2, MOR, Ra, HS, HB, too many plugs, Midi controllers, and all kinds of weird gadgets
    My Soundclick Page 
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