glitchy...

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hey folks, new here.

just downloaded Tracktion, hoping to float over from Logic Audio for the outputs. been working w/ T for a week or so and am having a lot, i mean a lot, of glitching.

I am running 16-24 tracks of audio, no plugs, on a 600 mhz ibook w/ max ram. I have tried several cache settings and nothing seems to be working. I even did a minimal re-install of OSX 10.2. Still glitching w/ 16 tracks of audio

I have been able to run Logic Audio with absolutely no problems and these are the same tracks I was working on in Logic. I have run out of trouble shooting ideas.

Oh, and I have looked for the 'ASIO direct' button in the settings and have not been able to find it...

Thanks. Really love the set up of T and am hoping I can get it to work out.

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Greetings Jason,

What do you mean by 'glitching'? Stuttering? Are these just straight audio tracks with no filters applied? What does the CPU level meter look like?

I'm currently running Tracktion on a Pismo G3 at 400mhz with 576mb of RAM, and am able to work with about that same number of tracks, several of which have VIs loaded in them. Granted, I have to juggle things a bit, freezing here and there, but I attribute that to the aging Pismo.

Also, could you elaborate on what you meant by coming to Tracktion for the 'outputs'? I'm a DP user and am watching the whole DP/Logic update thing, trying to decide on which I might go with as a full-time DAW, especially if Tracktion 2 is lacking some of the things I'm hoping for.

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Hey there,

By glitching I mean stuttering on playback. I start playback and sometimes almost immediately it starts to hiccup. None of this is printed on a track , it is just choppy interrupted playback, like my cpu can't handle the load. But the cpu meter is only at 10-20% at all times. it never gets past 25 or 30%.

And yes, this is all with no pugs and I have even deleter the VU meters, etc to free up the computer.

By outputs I mean individual channel signals coming out to my board. Logic Audio only lets me bring out 12 and Tracktion is unlimited.

I have had to go back to Logic, which runs even better after the minimal system install.

I really wanted to use Tracktion and was hoping it would be my solution since I liked the interface, but thus far I just lost 2 weeks of productivity. :?

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Well you're clearly not having a cpu issue, so don't bother trying to disable filters or anything - it's your soundcard that's not behaving itself. So what soundcard are you actually using? What latency is it set to? I'd have thought that tweaking the latency a bit would probably sort it out. And does it glitch with the internal sound system?

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Well, I'm just using the soundcard in my ibook through core audio OSX10.2.8.

I have the latency set @ ~.08 ms. I can run this machine @ a latency of 256 (around .05ms) w/ larger disk buffer in Logic.

I really can't figure out why this is going on. Seems like my ibook should be able to handle this load pretty easily. IfI set the latency higher I can really hear it when I record. Any solutions for an audible latency when recording audio?

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Where are you getting those figures from?? 0.05ms is less than 1 sample..

So does increasing the latency actually make it run smoothly? On a slower iBook like yours I'd be surprised if you could get away with < 512 samples, to be honest.

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Jules,

Just a quick note to follow up. I've not had any more glitches in audio using 1.5. I did get one glitch/error in 1.5, figured it was a fluke and can't repeat it. I haven't had the opportunity to upgrade back to 1.6 - maybe in a few weeks after I finish work for a new show on the 28th in Nashville.

Thanks.
James

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yeah, sorry about those numbers. don't know what I was thinking. My latency is set @ 8.7 ms right now, 44.1. If I go over 10 ms then the delay in playback of audio is very noticable.

I can run Logic 5.5.1 @ 256 latency w/ absolutely no trouble @ all. I'm not a programmer, so I have no clue as to why this is.

when I first installed tracktion, the latency was set automatically @ around 15ms. That made the delay in recording almost to the next beat. So I tried setting it to what I had it set for in Logic. No good, so I doubled it; too much delay, so I bumped it down until the dealy was not as noticable (around 8ms). heavy glitching, sometimes to the point where playback stops all together.

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I think Jules wanted to know at which latency setting you have no glitching.
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Well, I did some testing and it seems like I lose the glitches. But if I record @ that latency there is a monstrous lag in playback of what I have recorded. Any way to work around that?

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jasonlewis wrote:when I first installed tracktion, the latency was set automatically @ around 15ms. That made the delay in recording almost to the next beat.
It's this bit that strikes me as odd - a 15mS latency shouldn't push the recording out by that much (unless you're recording turbo-nutter techno!) Until recently I was using 11mS latency with no particular problem.

Are you recording audio or playing soft synths? If the former, monitoring with end-to-end switched out is the delay noticeable then?

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