I've started to notice a high-pitched tone while using the Acoustic Simulator with a compressor in front. I've tried it with different guitars and different cables. It's especially noticeable with active humbuckers (Seymour Duncan Blackouts in two different guitars) at settings I would otherwise love to use for recording. I can clearly hear it with my Strat as well, but only when I turn up the compressor and the Sparkle parameter in the Acoustic Sim higher than I would normally do.
Here's an audio example. It's already noticeable during the broken chords at the beginning, but it gets louder as I play more softly. When I mute a note, however, the ringing is also muted. Is this a tone that is already present in the output of my guitars, gets boosted by the compressor and somehow excites the Acoustic Simulator? Or some kind of artifact from the Bronze and Sparkle parameters?
Compressor in slot A
Acoustic Simulator in slot X
I'm seeing two peaks, around 8.65 and 17.3 kHz. When I use the Studio Equalizer to attenuate precisely those two frequencies (max Q, gain at -18dB), the ringing virtually disappears. Anyone else getting this?
Edit: On reflection, I suppose "hiss" isn't the right word, as it suggests diffuse, high-frequency white noise. Some of that is present, too, but it isn't as intrusive. The sound I'm referring to here is a focused, sustained, pitched tone.