Glitch in Superclip, not in source

So I’ve got a superclip in a montage. The superclip has about 20 edits with crossfades on them. When I listen to the superclip there’s a “snat” at the location of (only) one of these edits, but when I open the superclip up there’s clearly a crossfade at that location and it plays fine! I can open the superclip, move the crossfade slightly, play through cleanly, save it, and even ‘update outdated renderings’ in the process tab and it still glitches at that spot in the rendered superclip. Any thoughts? There are no plugins, no envelope changes, etc. I’m slightly baffled.

Oh, also, I just tried copying the whole source for the superclip to another montage, then bounced it to a single clip and it still pops at that one spot. What the heck?

No clue. Could you join a picture to show where the glitch happens (in the superclip montage).

Thanks - it’s got me baffled - I’ll try to come up with a video or demo session; the snat isn’t really visible to me on a waveform overview but it is clearly visible on a spectrogram. Anyway, I’ll spend some more time with this and hopefully have something. If it takes too long I may have to just de-click the final render at that spot and move on, though it’s making me nervous about the whole superclip workflow.

OK, so I see what’s going on, though I don’t think it should be happening - I know I said there were no plugins involved, but there was in fact an instantiation of a Fabfilter Pro-Q4 on the original clip with only a 24dB/Oct HPF at 45Hz. Upon editing some sections of this clip with Izotope RX I end up with a bunch of clips within the song each with the same instantiation of Pro-Q4. So I crossfade across those edits (short 20-30msec equal gain xfades) and everything plays fine, but when I render as a Superclip I get a snat at the start of one of those crossfades. If I remove all instances of the Pro-Q4 and render as a Superclip the snat is gone from the Superclip and I can instantiate the EQ across the now merged Superclip.

So, I don’t understand why this is happening, and I don’t think it should happen - I can work around it though it’s awkward - but perhaps there’s something else going on?

This also brings up the workflow issue which I’ve noted before: working on a master, I’ve eq’d/compressed/whatever a song with a few plugins - next I catch some issue in the song that needs an edit (or 10 edits) so I use Spectralayers or RX to edit those small sections - now I want to consolidate all those edits on that song into a Superclip so I can continue working on the overall master, but if I decide that that song needs a slight tweak to one of the plugs on it my only option is to edit the source and now I’ve got 10 plugs to edit instead of just one. If I could exclude clip plugins and envelopes from the Superclip render and just leave the plugs and envelopes on the single over-arching Superclip - in other words render the audio only into the Superclip - it would make much more sense to me.

OK, that’s all for now…

You are right, this should not happen. But the preset of the EQ you are using probably causes this. It is a linear filter (in which case it has latency), or not?

Thanks PG - not Linear Phase, IIR. 3msec latency.