by Lyubomir Dobrev | Approximate reading time: 2 Minutes

 ·  Source: U-he (KVR Audio forum)


U-he is a celebrated synthesizer and effects plug-in developer that’s onto stuff lately. First things first, its deep MFM delay/echo plug-in is ripe for a subtantial update. Second, U-he is developing an open-source plug-in format together with Bitwig and other industry bigwigs. It’s called CLAP and there’s very little we know about it, other than it’s the kind of plug-in format which U-he envisions in place of the current VST/AU/AAX paradigm. 


MFM 2.5 changelog, price and availability

MFM 2.5 has entered public beta, receiveing a brand new user interface among everything else. Other highlights include a new input section with input gain, filter and a transient balance parameter. A new output clipper is added to protect audio levels from excessive feedback. There are also new Granular and Diffusor effects to play with! The complete change-log is available below:

  • Native support for Apple Silicon chips (M1)
  • macOS Monterey compatibility
  • Completely overhauled GUI
  • New input section with gain, filter and transient balance
  • New Granular effect
  • New Diffusor effect
  • New output clipper
  • Improved filters
  • Improved GUI performance
  • Added meters for delay lines
  • Support for Oddsound MTS-ESP
  • Improved handling of junction links on Windows
  • Preferences and MIDI learn section added
  • Factory preset library sorted and polished
  • Added VST3 support
  • Improved preset browser
  • Improved soundset installation
  • Various Mac and Windows installer improvements
  • System info displayed in GUI (revision, OS, plugin format)
  • Ctrl A/B replaces fixed Breath and Expression modulation
  • Added “set as default” button to Ctrl A/B section
MFM2 25 new gui

MFM 2.5 new GUI

The price for MFM2 will stay at EUR 79 during the beta period, and jump to EUR 99 for the official release which is scheduled for early 2022.

New CLAP plug-in format

As for the new CLAP plug-in format, Urs Heckmann himself had this much to share initially:


It’s a new open-source plug-in format we are co-developing with Bitwig and some other collaborators. It’s still very much work in progress right now. We hope to have a working beta version available in the coming months. Stay tuned. A safety net, an opportunity and something possibly a lot better in many ways than the status quo. Even if it never picks up, it will still be useful for us. Also, what’s not to like about an open standard which does not require a vetting process, a law degree or learning a new language to get started?

I’d say this makes it pretty clear where Urs, Bitwig and the others involved are headed with the CLAP format. It sounds like classic ‘bust the system’ open-source ethic applied to audio plug-ins, which is very welcome. Urs followed up the initial announcement by telling all about CLAP on KVR – read here.

More information

Image Sources:
  • MFM2 2.5 new gui: U-he

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One response to “U-he announces MFM 2.5 delay/echo plug-in public beta, new CLAP plug-in format”

    Peter says:

    Here is a video with Urs Heckmann, you could include in the article 🙂

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