MidiVerb Emulator (Midiverb, Midifex, Midiverb II) (free & open source)

[RexXx]

MidiVerb Emulator (Midiverb, Midifex, Midiverb II) (free & open source) by thement

Emulator of the original Midiverb, Midifex and Midiverb II effect units made by Alesis.
The Midiverb was one of the first affordable digital reverb and effects units, launched in 1986. Midifex and the very popular Midiverb II followed later.

* Based on reverse engineering
* All programs and effects included
* No ROMs needed

VST3 for Windows is already working.
Perhaps some people can assist the developer with other platforms, plugin formats.

Home @ github (to download click on the right side "Releases"):
https://github.com/thement/midiverb_emulator

Web demo, how it sounds:
http://ibawizard.net/midiverb/

Screenshot (v0.4, VST3):

Midiverb Emu VST3 Win.PNG

Some programs of the Midiverb II hardware unit:

[tlvid]

Great idea and it does sound good, but could someone experienced with the hardware comment on how noisy the Midiverb II is? It's far noisier than Midiverb in this plugin so I'm just wondering if that's accurate.

[Cuauhtli]

20 second reverb! Ha! Someone after my own heart (or whatever that expression is). And the feedback control. My kind of reverb. Thanks for the heads up on this/these.

[nonstatic]

Wow, amazing!

[sprnva]

Nice find! As-is it builds fine on Linux. From a quick play it has some nice sounds.

[JerGoertz]

Thanks for the heads-up, this looks like something I'd like!

[Korzybski]

Looking forward to a AU Mac version
Keep up the great work

[tripleflows]

It has a somewhat cool musical vibe, great algos.
Love it even if this is just a preset machine, but without the added noise level of the hardware.

[El°HYM]

Since I have two of the mentioned hardware devices, will definitely keep an eye on this. Also some claude involved as it seems.

[pekbro]

This is pretty bad ass imo. super efficient.

[stanweb]

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Hi, I've just successfully compiled the Audio Unit (AU) version of your Midiverb Emulator on a Mac Book Pro (Apple Silicon M4). The sound is absolutely spot on—it really captures that classic Midiverb II vibe!

As you mentioned looking for help with other platforms, I can confirm that your code is very portable thanks to the C conversion of the DSP. I’ve tested it in Ableton Live and it works perfectly.

For those who want to compile it on macOS, it's actually quite straightforward. Here is how I did it:
1. Enable AU Format:
In MidiverbPlugin/CMakeLists.txt, simply add AU to the formats line:
juce_add_plugin(MidiverbPlugin ... FORMATS VST3 AU Standalone ...)

2. Compilation Steps (via Terminal):
- Install tools if needed
brew install cmake

- Clone and enter the plugin directory
git clone https://github.com/thement/midiverb_emulator.git (https://github.com/thement/midiverb_emulator.git)
cd midiverb_emulator/MidiverbPlugin

- Configure and Build
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

The compiled .component will be waiting for you in build/MidiverbPlugin_artefacts/AU/. Unfortunately, the VST3 version could not load in Ableton.

I am an Apple Registered Distributor, so if you need any help regarding code signing or notarization to avoid Gatekeeper issues for future official releases, feel free to reach out. I'd be happy to help this project grow!

[Uncle E]

- Configure and Build
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

Would you mind walking me through this part?

[stanweb]

Would you mind walking me through this part?

To run these commands, you need a few developer tools installed on your Mac first. Here is the 'starter kit':

- Install Xcode (from the App Store) and run xcode-select --install in your Terminal to get the compilers.

- Install Homebrew (from brew.sh), then run brew install cmake to get the build tool.

Once those are ready, you just copy-paste the commands I posted into the Terminal app. It will automatically download the JUCE framework and build the AU/VST3 files for you.

[tlvid]

Hi, I've just successfully compiled the Audio Unit (AU) version of your Midiverb Emulator on a Mac Book Pro (Apple Silicon M4). The sound is absolutely spot on—it really captures that classic Midiverb II vibe!

As you mentioned looking for help with other platforms, I can confirm that your code is very portable thanks to the C conversion of the DSP. I’ve tested it in Ableton Live and it works perfectly.

For those who want to compile it on macOS, it's actually quite straightforward. Here is how I did it:
1. Enable AU Format:
In MidiverbPlugin/CMakeLists.txt, simply add AU to the formats line:
juce_add_plugin(MidiverbPlugin ... FORMATS VST3 AU Standalone ...)

2. Compilation Steps (via Terminal):
- Install tools if needed
brew install cmake

- Clone and enter the plugin directory
git clone https://github.com/thement/midiverb_emulator.git
cd midiverb_emulator/MidiverbPlugin

- Configure and Build
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

The compiled .component will be waiting for you in build/MidiverbPlugin_artefacts/AU/. Unfortunately, the VST3 version could not load in Ableton.

I am an Apple Registered Distributor, so if you need any help regarding code signing or notarization to avoid Gatekeeper issues for future official releases, feel free to reach out. I'd be happy to help this project grow!

I don't believe the dev is active here (he didn't make the original post) so definitely worth contacting him on Github. As someone with experience of the hardware, what are your thoughts on the noise level? Was it really that loud on the hardware? It just sounds incredibly loud to me.

[Uncle E]

Would you mind walking me through this part?

To run these commands, you need a few developer tools installed on your Mac first. Here is the 'starter kit':

- Install Xcode (from the App Store) and run xcode-select --install in your Terminal to get the compilers.

- Install Homebrew (from brew.sh), then run brew install cmake to get the build tool.

Once those are ready, you just copy-paste the commands I posted into the Terminal app. It will automatically download the JUCE framework and build the AU/VST3 files for you.

Thank you. Homebrew was what I was missing. I was able to get the VST3 working but not the AU in Luna.