FAQ

Frequently asked questions

Common questions before buying. If yours isn't here, just ask.


Buying and licensing

Is this a one-time purchase or a subscription?

One-time. Pay $19 (€17 in the euro area) once and that's it: no subscription, no yearly renewal, and the license signature you receive never expires.

How many computers can I use it on?

Three computers per license. Your account page shows your activations, and deregistering one lets you move the license to another machine.

Does it need an internet connection to run?

No. Only the first activation needs the internet. After that, the signature is verified offline and the plugin never goes online.

Can I get a refund?

Refunds are handled case by case. Write to support@imfm-synth.com / satodeyannsu@gmail.com.

Can I try it for free before buying?

Yes. The older v0.1.3 build is free to download with an account, with no time limit. As an older build, it doesn't have the current version's newer features. To try it without installing anything, use the browser demo on the product page: it runs the same audio engine that ships in the plugin.


Systems and formats

Which operating systems are supported?

Windows 10 or later (x64 or ARM64) and macOS 10.15 or later. On macOS it runs on both Intel and Apple silicon. The Windows ARM64 build hasn't been tested on real hardware yet.

Which plugin formats are available?

VST3 and CLAP on Windows; VST3, AU and CLAP on macOS.

Will it work in my DAW?

It's tested in Cubase and Bitwig Studio, on Windows (x64) and macOS (MacBook Neo). It should run in any host that loads VST3, AU or CLAP, but other DAWs haven't been verified. If it misbehaves in yours, write to support@imfm-synth.com / satodeyannsu@gmail.com.

Is there a Linux or AAX version?

Not at the moment. Only Windows and macOS are supported, and other platforms and formats haven't been decided.

Windows warns me when I run the installer.

The Windows installer is currently unsigned, so SmartScreen may warn on first run. Choose “More info”, then “Run anyway”.

How many voices of polyphony are there?

Sixteen.


Features and sound design

Can it load my DX7 .syx patches as they are?

Yes. Load a .syx and all 32 voices come in, including ratios, fixed frequencies, keyboard level scaling, rate scaling, LFO settings and sensitivities. Each voice becomes an ordinary patch you can edit. It isn't an emulator, though, and doesn't aim to reproduce the DX7's sound exactly.

How many operators are there, and are the algorithms fixed?

Eight. You aren't tied to fixed algorithms: draw an arrow from any operator to any other to modulate it. You can also start from one of 32 algorithms, numbered as on the DX7. Each connection has its own depth and phase, and an operator can feed back into itself.

Can it play wavetables?

Yes. An operator can play a wavetable instead of a sine, and the scan position can be modulated. Serum and Vital WAV files load directly.

Are envelopes limited to ADSR?

You can draw the envelope itself. Place as many points as you like, set a curve per segment, and choose where sustain and the loop sit. The ADSR knobs are still there when you want them.

Does it support MPE?

Yes. It accepts per-note pitch bend, with a ±48-semitone range on member channels. In CLAP it declares the MPE note dialect, so per-note pitch edits such as Bitwig Studio's Micro-Pitch come through intact.

Does it come with presets?

Yes, 30 presets, all made by the author. You can also start from Init, and save and export the sounds you build. DX7 banks (.syx) load too.

What languages is the interface in?

Ten: Japanese, English, Chinese (Simplified and Traditional), Korean, German, French, Spanish, Russian and Italian. A wheel in the interface switches between them at any time. Support is available in Japanese and English.


How it differs

How is this different from other FM synths?

Four things. Eight operators wired freely with arrows, not tied to fixed algorithms. Operators that can play wavetables, so FM and wavetable synthesis mix in one instrument. Envelopes you draw point by point instead of setting with ADSR knobs. And an interface in ten languages, with support in Japanese.

Why $19?

Free FM synths are frustrating, and the established ones cost hundreds. This is priced to fill the gap. $19 (€17 in the euro area) is the launch price; the regular price is $49.

Is this a DX7 emulator?

No. It loads DX7 banks, but it isn't built to reproduce a DX7. With eight freely wired operators and wavetable playback, it's a different instrument that can also read those files.


Didn't find your answer?

This goes straight to the developer. Bug reports, questions before buying and refund requests all go to the same address.

support@imfm-synth.com / satodeyannsu@gmail.com