GSDSP MagicBlur 4+

Spectral Blur/Freeze AUv3

Gustav Scholda

    • 5.0 • 6 Ratings
    • $24.99



MagicBlur: The studio-grade multi-curve spectral blur and freeze effect workstation. Build your own lush, atmospheric, professional effects. AUv3 and standalone app.

Turn your samples into a synthesiser to create lush atmospheric sounds, endless worlds of overtone glissandi, wild reversed and glitch-like sounds - it’s all there! Easily and quickly apply separate blur times per frequency, or ranges of frequencies. Mix them, modulate them, spread them, run wild, and create original spectral transformations from subtle reverberish washed out sounds to extreme effects from deep space!

Spectral Blur describes the process of taking spectral snapshots and morphing between them.

Optionally you can deactivate the morphing part and turn the whole thing into a spectral freezer. And if that’s not cool enough (no pun intended) you can even reverse the morph direction, apply envelopes and shift the pitch to create unique sounding effects never heard before.

What’s New

Version 2023.3

New presets from Zanshin!

UI Improvements:
- Allow interaction with modulator while in mapping mode
- Allow switching of modulator while in mapping mode
- Signal indicator for follower modulators
- Refined look of menu and combo box arrows
- Refined font sizes and layouts
- Refined edit area of CurveEditor
- Pulsing button for mapping mode
- Optimised drawing speed

- Improved AAX categories
- Improved preset management from host
- Fixed a bug in S&H
- Optimised speed for modulation
- Default modulation depth ensured to be 50%
- Improved Undo behaviour

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

mrdogheadSHoGoAT ,

As advertised

Magic Blur works as the blurb suggests it will, as a lovely sound-twisting effects set.

The interface may be needlessly inscrutable in places. Not enough parameter information appears in the display, either in the form of always-visible data or through optional settings or as on-touch floating boxes. But in both cases, these design choices have become - sadly and annoyingly - common among app developers. The look of the app seems to take precedence, for too many music-app developers, over usefulness.

This developer shouldn’t be singled out for doing what most developers do in this regard, but I mention it in the hope the developer will adjust some of the function labels and provide more MIDI-parameter data.

The ability to replicate elements of effects/sounds and to be precise about specifying what an app should do and is doing is one of the key strengths of computer music production. Developers lately have forgotten this in misguided efforts to force users to “use their ears” or in hopeless attempts to replicate the workflow of antique equipment.

The MIDI data is there anyway, in some form, behind the scenes. As a general matter, regardless of the particular app or developer, I want to be able to see this data and to use it without guesswork, triangulation, or fiddling at length with GUI controls to get simple results.

That said, once you understand the controls, for sound-shaping core of the app works beautifully, providing a wide range of modulation. There is not a lot in the app store offering a direct parallel. Apesoft and the related Amazing Noises offer partially overlapping products, to give examples, but this one finds its own distinct place.

On the whole, this app is worth the full load of review “stars”.

One odd, if minor, thing: it would cost me more to “complete my bundle” than to buy the one app I do not own from the new bundle offer. That should not happen.

Developer Response ,

Thank you for your very thoughtful comments. We love this sort of high quality feedback and always take it into account when designing. Regarding the bundle. The rules of the store are unfortunately outside our control.

App Privacy

The developer, Gustav Scholda, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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