Softsynth latency Tried everything i can think of.... any ideas?

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jazzman
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2012/09/08 16:53:55 (permalink)

Softsynth latency Tried everything i can think of.... any ideas?

intel ivy bridge i7
16 gig ram 
separate sata drives for audio and samples
RME fireface 800 latest drivers and firmware


All buffers set to minimum
ASIO reports 93 samples in. 144 samples out. total 237  = 5.4 msec

Pretty hot system running fine on lowest latency settings
Soft synths will not play fast enough live. Im using a kurzweil 
running into the fireface MIDI input. Still having to use Kurz's onboard
sounds when playing with project then send recorded midi to whichever SS
i want to use...workable but a pain.....as i was writing this i switched to
WDM and shut of all effects...that seems to get the job done but
I'd love to audition sounds when the mix is glorious and cooking on all cylinders.
You strip off the verb and the EQ's and its just not the same thing.
It has been a while since I've seriously tried to use my SS's maybe this is the best i can do.

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    CJaysMusic
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 17:28:40 (permalink)
    The effects that you are using may not be meant for recording . Some effects have built in latency and are not meant for real itiem recording, hence the added latency.

    If WDM driver mode works better, then use that driver mode. Your suppose to try both driver modes and chose the one the best works for your DAW. So its ok using WDM as its ok using ASIO.

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    jb101
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 17:40:33 (permalink)
    The things that seems to cause latency most commonly are convolution reverbs and any look-ahead effects.
     
    Put it back into ASIO and disable anything like that, such as Perfect Space Reverb, and try again.  If it's okay, replace Conv. Reverb with Algo. one, such as Pantheon, when tracking.  That way you get the reverb as a reference when playing, and can replace it with the Conv. when finished.
     
    Hope that helps.  Post back when you've tried it. 

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    samhayman
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 22:19:43 (permalink)
    jazzman


    I'd love to audition sounds when the mix is glorious and cooking on all cylinders.
    You strip off the verb and the EQ's and its just not the same thing. 


    I hope I'm not going off-topic but if you allow me to share some of my working-experience, perhaps it might help a little...


    It seems to me like you're trying to record something that sounds like it's already mixed and mastered so you get the full sonic effect.


    I sympathize and understand where you're coming from.


    Problem is that even if you have a beast of a PC, FX plugins drain the system more than anything else which could also be another reason that's causing your latency apart from what our colleagues said above.


    I use loads of orchestra VSTs - stuff that's very demanding on my system. So here's what I do to get a decent sound while recording. You might apply this to your needs.

    I constructed a template in which I have all the panning ready. You know... violins on the left, celli on the right, etc and to get depth (front and back) I use a single reverb on a Bus - the most basic there is in Sonar.

    Can't think of the name right now but it's not the sonitus one. It's one that comes bundled with Sonar, with the "ugly" very basic UI. Sounds a bit crappy but it's still reverb and helps to fill in a bit.

    I put the four sections into 1 bus each (strings, brass, woodwinds & percussions) and on each bus I use a Send to the "Reverb Bus" and with this I control the level of reverb for each section for depth. The more reverb, the further back it sounds in your soundscape. So percussions (at the back) would have the most verb while strings (at the front) have the least.

    Before I started using this system, I was using 4 reverbs - one for each section. And when I changed to the way I just described, I saw a drastic change in the CPU load in Sonar.

    Once I'm done recording, I freeze my tracks, remove the low quality reverb and then I'm free to load all sorts of FX - in my case mostly reverbs, delays and other things that help achieve a nice ambience for the orchestra to sit in.

    The computer struggles most when you're using VSTs and recording. Once you freeze tracks to WAV, the CPU has very little to compute except 'reading' what's in the wave tracks.

    It might take some time to get used to basic 'raw' sound, but once you start having fun recording your songs smoothly, I think you will quickly get used to "putting up" with it until you get to the mixing / mastering stage.

    I hope this helps!
    Sam

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    jazzman
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 22:29:35 (permalink)
    Yes i was using perfect space and several look aheads. For some reason WDM
    works better than ASIO in getting the latency where its useful, but Asio is more stable overall.

    I just began serious work on this new system on projects that were already in the Mix stage but
    needed some ear candy using the SS's. My previous computer was 6 yrs old (Ath 4800+) and never
    came close to being able to utilize Softs in real time.

    I think I can use the softs in newer tunes I'm just laying down but think I'll stick with the MIDI workaround
    for the bigger nearly finished projects. Not sure why Asio could not bring lat down with shutting off EFX but WDM could.
    Maybe I'd have to eliminate Hi lat FX from a project completely before Asio Settles down...I'll experiment some more.

    Asio overall is very happy with this setup and can run with not a hint of stability issues at the very lowest
    buffer settings allowed. WDM is a little cranky and drops now and then so I'll probably go back to Asio in the long run.....
    at least until I finally have to replace the fireface......which I hope is a long time from now....a monster interface.

    Many thanks for the input to both of you.....I'ts good to be back on the newsgroup...been many years!
    #5
    bitflipper
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 22:50:25 (permalink)
    5.4ms should be acceptable for live playing. If your real latency is longer than what the buffer sizes would dictate, it's because of one or more effects plugins. Many effects require their own internal buffering, which adds significant latency. Convolution reverbs are probably the worst but far from the only offenders. If I were using a laptop on stage, I'd prefer to use hardware effects such as your garden-variety reverb and delay stompboxes.

    EDIT: I guess I took too long to answer your post; it seems you've already answered your own question.


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    Noel Borthwick [Cakewalk]
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 23:00:10 (permalink)
    You definitely don't want to use any effects that introduce delay while tracking since you will hear the latency. Convolution reverbs like Perfect Space have a very large delay in thousands of samples. Use any other reverb that doesn't have delay such as the Sonitus Reverb and you should be fine.
    Also keep in mind that its not just the track that you have the fx on that introduces delay. If you have any other tracks with delay compensated plugins on them going to a common bus you will also hear delay due to PDC. You can remove that delay while tracking by using the PDC override button which makes SONAR stop using delay compensation.


    Noel Borthwick
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    daryl1968
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/08 23:06:55 (permalink)
    LP-64 EQ and Multiband do it to me every time 
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    jazzman
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    Re:Softsynth latency Tried everything i can think of.... any ideas? 2012/09/09 08:25:10 (permalink)
    Excellent! Thanks for all the input.  Sam, for some reason  your post did not appear when I answered the first 2.
    I appreciate the insight into your symphonic spacing scheme..great info! I also was using the LP64 multiband
    in the project... so no doubt a ton of latency no--no's I was fighting. I've been using Cakewalk-sonar since pro-audio 9
    and still have not even scratched the surface of what's there! 


    Noel, I never knew about the PDC override button since I
    never before had occasion to try something more ambitious latency wise....I'll try that button out too...that is, as soon as 
    I figure out where it is! I've spent the last few years mostly tracking audio or using my external MIDI gear so my softsynth skills are still a work in progress Thanks again everyone for all your input!


    BTW Noel I tried to install my downloaded Dimension Pro 1.5 into my new system and it sez it needs to see
    some earlier version before it will continue...given up on using it for now till I get it figured out....but with X2 coming out with the new dim pro strings i'd like to get this issue settled before i commit to a pre-order.
    If u don't see this I'll re-post a new thread. Thanks again!


    #9
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