Tremolo playing back both as machine-gun and with samples using GIFF - help please

For some reason, my cellos and basses are making some pretty strange sounds.

I’m using Garritan instruments for Finale and Dorico 5. I got pizzicato and arco working properly for viola and violin, but here’s what’s going on in the cello and bass when I use tremolo. I’ve set my expression map to send G-2 keyswitches. I can verify in Aria player that the keyswitch is taking effect. But based on the strange sounds I hear I swear that Dorico is also repeating the note — as if it wasn’t playing a sampled sound. Here’s my expression map:

I don’t see Tremolo in either Library>Playing Techniques OR Library>Playback Techniques, nor am I quite sure how these things work/what the difference is between the two.

Thanks for any help!

Have you checked this?

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I did check that, but this problem only affects cello and bass. Violin and viola work just fine, strangely.

OK, I did more on this and I was wrong - it’s affecting all strings, not just lower ones. I’m attaching a file. I am certain that the strings are playing the proper keyswitch, but it is ALSO repeating the notes and giving a machine-gun effect. Any ideas, world?

tremolo.dorico (2.4 MB)

Also, I tried adjusting the settings you suggested but nothing changed. Thanks!

Your ARIA vst is incompatible with mine, so I can’t have a look at the Garritan instruments you’re using.

But the Expression Map you’re using “GPO Tremolo Strings” doesn’t have a Tremolo expression.

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@benwiggy Sorry about that! I created that map just to make the recording I needed. I replaced the file in my previous post with the actual map I’m using. Any ideas? I can’t seem to find where to tell it to use the sampled tremolo.

Can you post a screenshot of your ARIA plug-in?

@benwiggy Sure thing, here’s my plug-in:

Your ARIA plug-ins are incompatible with mine – probably you’re still using VST2 on Windows – so I’ve have to replace your “Strings” VST with a fresh ARIA vst instance, and load the GIFF instruments, and add the Expression Maps.

After doing that, I have been able to reproduce the problem, but I have also not been able to reproduce it, and I don’t know why. I’ve tried resetting the Playback Options, which I thought worked, but I’ve also been also to get it working without doing that.

Here’s a list of things that needs addressing, but I haven’t identified them as the actual cause:

First of all, you’ve set all those ARIA instruments to go out on the same channel pair, so they will only appear on one Dorico mixer slider. Where it says “1/2”, click on that, and set each instrument to a different output pair – e.g. 3/4, 5/6, 7/8, etc. (Otherwise, there’s no point in using the “Multi-output” VST…!)

Your expression map uses C-1 for the “Natural” expression, when it should be C-2; so it’s not switching back to Natural. (Perhaps try changing the expressions on a passage of notes between Arco, Pizzicato and Tremolo, and seeing if that’s better.)

You’re also using the same Violin sample for the 2nds as for the 1sts, and there is a Violins 2 KS instrument. (Which in fact has several more articulations, because they accidentally copied over the GPO5 instrument without restricting it!)

One other problem is that you’re using Single Players (in Setup mode), rather than Section Players. Ideally, you’ll want your Playback Template to distinguish between the two, so you can use the appropriate sample instruments for Solo and Section.

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