Cubase 12 Waveform Drawing "More cluttered" than 11

Manual says:

Interpolate Audio Waveforms

Interpolates sample values to form curves when you zoom in to one sample per pixel or less.

I don’t think this preference has anything to do with this. Maybe, @Louis_R, you are using the right term for what you see on the screen, but Cubase’s preference “Interpolate Audio Waveforms” has a very narrow meaning as you see. It’s not a general graphics setting. (I believe)

The waveforms can now be displayed smooth. It’s a new feature called “Smooth waveform drawing” that was added in Cubase 12 and is enabled with Interpolate Audio Waveforms in Preferences.

Interpolate Audio Waveforms now does two things :

  • When the waveform is zoomed out, it processes it with anti-aliasing to smooth out sharp pixels, just like in video games. As a result it makes the outline a bit thicker because it creates new gradient pixels in between so the waveform display is no longer pixel-perfect. This is more or less apparent depending on the zoom level when the waveform “merges” or not, and on your screen resolution.
  • When you zoom in enough to see the samples, it joins them with a curved line instead of flat steps. That’s what this setting did for many years and still does.

Here’s @pgstudio main complaint :

He kept talking about those silences being rendered thicker, but even after posting screenshots several times, never noticed the difference between aliased (C11) and smooth (C12) waveforms.

So, here are new screenshots so you guys can see better :

So finally, what @pgstudio complains about is that in the MAC version of Cubase 12, disabling Interpolate Audio Waveforms does not work and it stays on all the time.

Can you guys confirm those bugs once for all ?

And agree that the following could be an improvement ?

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Well, that will teach me to post away from my PC!

It seems that the preference DOES affect the events. (I don’t remember it doing anything for me in previous versions. Bad prefs? Drivers? Who knows.)

With the preference set to OFF

  • In the project window, regions of events with very low volume create little defined peaks.
  • The same happens in the Sample Editor

With the prefernce set to ON

  • In the project window, regions of events with very low volume are drowned in the line which is thicker.
  • In the sample editors OVERVIEW, something else happens. Regions of events with silence fade to nothingness. No line at all.

So, you were right, @Louis_R, sorry for the noise!

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@ggmanestraki No problem !

This function was added in Cubase 12 .
In previous versions it was just smoothing the samples at high zoom levels.
Now it also smooths the waveform globally.

12.0.2 And the problem is still here! :confused:

We are aware of the issue and working on a fix for the next update. Actually it’s just one pixel. The silence line was one pixel and with the interpolated waveforms its two pixels in height.


Thanks a lot for the offical reply, Matthias! I appreciate!

Funny how the tiniest things can actually make a big difference. Perhaps that indicates just how mature Cubase has become. People are beyond “controlling a computer application” and are more in the mode of living organically with the software. Even a small distraction breaks that mental bond.

I don’t mean to get too metaphysical, but it is actually pretty cool.


Thank for working on this as a priority. It really is important to many of us.

If you turn background color modulation on it seems better. I don’t really use this option but you do get a thinner line for zero db.



Just checked and still not fixed on 12.0.30 :confused:

Hi @pgstudio!

Would you please report that observation here: Cubase 12.0.30 performance issues ?



This issue is not a performance issue.

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Still not fixed in 12.0.30.

I also checked and confirm that it is not fixed in 12.0.30. It has nothing to do with smooth waveform drawing either. That’s a red herring. For me, this causes me to revert to v11.

If I had Cubase 12 (only used trial for 30 days) I would open a support case. Everyone should who does not like thie new waveform display (which is really annoying).
Seeing CB12 in that state makes me already concerned that many things will be fixed with the new version release only. Being here with v11.0.x in “ok” (though there should have been more final maintenance updates even for 11).

That’s because you are on Mac, where Interpolate Audio Waveforms cannot be disabled because of a bug. It is enabled all the time even when the box is not checked.
Interpolate Audio Waveforms = Smooth Waveform Drawing, this is the same thing, in Cubase 12 Smooth Waveform Drawing was added as an improvement to Interpolate Audio Waveforms, but again since you are on Mac you can’t see the difference.

The official topic about these issues is that one, which includes all of the 3 issues related to the Interpolate Audio Waveforms setting :

Okay so my Support Request on this issue was marked as Solved this morning, without any explanation, and the ticket has been completely closed (comments no longer allowed).

Obviously the issue is still there as 12.0.30.
To me this is quite disrespectful. I spend hours everyday on this forum trying to find bugs, testing them thoroughly, then sending support tickets, and this is the result.

Edit : I also mentioned the “thick silence lines” issue in a separate ticket in which I explain the whole problem about Smooth Waveform Drawing (here on the forum).
This ticket last activity is from this morning too, so I guess the same person is currently investigating it, since it is still opened, though there is no comment yet.
Wait and see :wink:

Hello @Louis_R ,

Thanks for all your hard work on these fora, first of all. :slight_smile:

Quick question please about this post of yours: Cubase 12 Waveform Drawing "More cluttered" than 11 - #27 by Louis_R

I clearly see the difference between C11 and C12 when zoomed in. However though I see some difference when zoomed out, I find it hard to characterize, and the word “Smoothing” doesn’t really come to mind when trying to describe the C12 zoomed out waveform.

What exactly are you noticing as a difference in the Zoomed Out waveform between C12 (where Smoothing is applied), and C11 (where it is not)?

(I’m not referring, to clarify, about the 1- vs. 2-pixel line thickness difference when there is silence).

Thank you!

Well, I can’t explain it better than what I’ve already said in this topic, to be honest.

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Hello @Louis_R ,

Thanks for your response.

Those are waveform pics, or “silence line” pics? Where/how did you get them?

If waveform pics, it seems that Waveform Smoothing function is just blurring the edges … ? I’m not sure why someone would find that helpful … what problem did it solve?

I have a feeling I’m missing something major and obvious here!

Thanks -