Removing Unwanted Frequency Noise/Artifacts from Softsynth Samples

I have a softsynth that produces an unpleasant high pitch artifact with certain notes. The samples are heavily processed with reverb and aren't accessible to edit. I don't know if the samples or the reverb are to blame. I've isolated it with a 31-band EQ @3.2k. Problem is the instrument needs that freq to sound right. Is there a way to deal with this without a lot of hassle?
 
At worst I could kill the 3.2k freq on just the guilty notes after freezing the track leaving the rest untouched.

Thanks scook, I'll see if that helps.

scook
maybe plug-in upsampling will help

Curious about this. I’m triggering an Addictive Keys grand piano with MIDI. It has some irritating resonances at certain frequencies I can’t seem to do anything about, no matter what I try with EQ, dynamic compression, de-essing or anything else. Could this strategy help that? It’s was a few projects ago and I learned to live with it, but it’s always bugged me.

Also, if you upsample on playback, does it create extra CPU load when you listen back to it?

Thank you scook. You are such an amazing gold mine of knowledge in the forums. When you weigh in on a question, I always sit up straight! :)

Hi. You could try using a de-esser on those frequencies. Or a multi-band compressor.
All the best.

Thanks for the replies. The offending frequencies (resonances?) are in a solo piano, Addictive Keys Grand, triggered by MIDI. I’ve tried different mic types an placement within AKeys and the de-essing and the dynamic multi-band compressor and eq route, but it’s in a number of high mid to upper mid ranges and the approach just seems to suck the life out of the tone.

Haven’t gotten back to it to try the upsampling, but I will.

I was getting an unusual resonance with softsynths playing certain sounds at certain frequencies and it turned out to be my left monitor.
 
A new pair of monitors fixed that problem!