Rithmatic: FM Synth

FM synthesizer & AUv3 plugin

Free · In‑App Purchases

Built for iPhone Duo: half open, play it like a keyboard synth. 36,000 classic FM patches, an AUv3 instrument, and sends patches to the M-VAVE FM-1, DX7 and Volca FM. Rithmatic is an FM synthesizer with 36,118 classic DX7 voices built in, and an AUv3 plugin for GarageBand on iPad and your DAW on the Mac. Browse them by family and by character, learn how FM works by watching it shape each one, build and blend your own, and play them from the on-screen keys or a MIDI keyboard. No account, no ads, nothing locked. Built for iPhone Duo: half open, it stands like a keyboard synth, the waves above the fold and long keys on the flat half. IN YOUR DAW • Put it on a track in GarageBand on iPad, or in an Audio Unit host on the Mac such as Ableton Live. • Its window is the app's own Patches screen and Patch Builder, with your library. • Your bank appears as the plugin's presets, and Brightness, Attack, Decay, Release and Feedback can be automated. The patch is saved with your project. A LIBRARY THAT SHIPS FULL • 36,118 unique DX7 voices come with the app: no download, no account, no network. • Start with Essentials: the famous sounds and the songs they're on. • Browse by family, or by character: percussive, plucked, metallic, bright, sustained, swell, evolving, mellow. Or search by name. • Patch of the day: one classic voice each day, in the app and in a widget for iPhone, iPad and Mac. PLAY IT • A DX7-compatible synthesis engine runs inside the app, so every patch plays with nothing plugged in. • Play from the on-screen keys, your Mac's keyboard, or any MIDI keyboard you connect. • Pitch bend, mod wheel, breath, sustain and aftertouch, with aftertouch set to vibrato, tremolo or swell. • Velocity from a MIDI keyboard, or turn it off and choose how hard every note plays. • An arpeggiator (up, down, up and down, random or as played, over up to three octaves) and a latch that holds each key. • Record what you play and share it as a WAV. • Five tunings: equal, just, and Wendy Carlos's Alpha, Beta and Gamma scales. • Light or dark, as your device is set or as you choose. Drag the keys taller or shorter. SEE THE SOUND The waveform follows what you play: each operator's envelope, how hard you hit, the pitch, the LFO's wobble, and a chord as one layer per note. Resize it, go full screen, or watch the output itself in the Scope look. PATCH BUILDER: LEARN HOW FM WORKS FM is famous for being hard to program. The Patch Builder shows you why a sound sounds the way it does. • All six operators on a graph, each cable carrying its wave: see a modulator reshape its carrier as you drag. • Draw a cable and the builder snaps to the nearest of the 32 algorithms, so you learn routing by doing it. • Plain words beside the jargon. Edit each operator's ratio, level, envelope and tuning, the LFO and pitch envelope, or use FEEL: thickness, touch and brightness. BLEND Pick two patches and Rithmatic blends them into eight new ones. Play each, and keep the ones you like. YOUR BANK AND FILES • Gather patches from anywhere into your bank, then drag pads to swap or reorder them. • Export the bank as standard DX7 .syx files. Open .syx banks, or a .zip of them, from Files, Mail, AirDrop or the Finder. • Share a sound as a short clip of it playing, with a card and a code that brings the patch into anyone's Rithmatic. WITH A SYNTH, IF YOU HAVE ONE Hardware is optional. Choose your synth in Settings: • Korg Volca FM2 (firmware 1.10 or later, over MIDI): read its current patch, write to any of its 64 memory slots, back up and restore all 16 sequencer patterns, and capture the whole instrument to a snapshot. • DX7 family: send patches and 32-voice banks to a DX7, TX7, TX802, the original Volca FM or the M-VAVE FM-1 over standard Yamaha voice dumps. FREE AND PRIVATE Every feature is free; tips are optional and unlock nothing. Rithmatic works offline and collects no personal data: no account, no analytics, no ads. KORG and volca are trademarks of Korg Inc., DX7 and TX of Yamaha Corporation, M-VAVE of its owner. Rithmatic is an independent app, not affiliated with or endorsed by any of them.

  • 4.5
    out of 5
    8 Ratings

Rithmatic 1.2.7 is a maintenance release: nothing changes in how it plays or sounds. Rithmatic 1.2.6 gives the screen more room on iPhone Duo. And in case you missed them: 1.2.5 made Rithmatic for iPhone Duo, 1.2.4 sends patches and banks to the M-VAVE FM-1, 1.2.3 kept the sound playing through calls and Siri and brought Spanish, 1.2.2 made Rithmatic a tool for learning FM, 1.2 brought dark mode and five tunings, and 1.1 put Rithmatic inside your DAW as an AUv3 instrument. NEW IN 1.2.6 - iPhone Duo: the rail with the tabs and the transport is half as wide, closed, open or half open, so the patches and the keys get the room - The record and stop keys stay clear of the camera - Half open, the pad toolbar keeps to one row, with a whole row of pads above the keys - Settings, the Patch Builder and the arpeggiator bar fit the Duo's narrower screens NEW IN 1.2.5 - Built for iPhone Duo: Rithmatic fills the screen closed, open or half open - Half open, it stands like a keyboard synth: the sound and its waves above the fold, long keys on the flat half out to the edge of the glass - Menus and panels open on the flat half, under your hands - Closed, the tabs and transport run down a rail beside the camera - Open flat, the waveform takes a third of the screen and the patches the rest; drag its handle to change that NEW IN 1.2.4 - The M-VAVE FM-1 takes patches and 32-voice banks: choose DX7-compatible in Settings ▸ Hardware - Patches and banks go to every DX7-family synth in smaller bursts, so budget synths and MIDI interfaces catch every byte NEW IN 1.2.3 - Rithmatic in Spanish: every screen, Help and the synth terms, when your system language is Spanish - The sound comes back by itself after a call, Siri or an alarm, plays through Bluetooth headphones, and keeps going with the screen locked - Play along with other apps, in Settings > Sound: on, Rithmatic plays over your music; off, it stops other audio when it starts - Tighter timing: a MIDI keyboard plays straight into the synth, and the arpeggiator and the Volca's clock keep steady time while the screen is busy - FROM SCRATCH and the Patch Builder's starting patch now play at the right pitch - Saved patches keep the operators you switched off and the Volca FM2's own settings; Undo brings back a patch's name too - The Patch Builder asks before a pad replaces unsaved work, and keeps a draft if the app closes - The catalog lists every patch (SHOW MORE), search matches words as you type them, and you can delete patches you saved - No more stuck notes when a keyboard is unplugged or you switch screens while holding a key; .syx banks with a wrong checksum still open - Contact support can include a short log of recent errors, which you see and can remove before sending STILL NEW FROM 1.1 - AUv3 instrument: put Rithmatic on a track in GarageBand on iPad, or in an Audio Unit host on the Mac. Its window is the app's own Patches screen and Patch Builder, with your library; your bank is its presets, and Brightness, Attack, Decay, Release and Feedback can be automated - Essentials: the DX7 sounds you know from records, each with why it is famous and the songs to hear it in - Patch Builder: each operator's envelope and tuning, the LFO and the pitch envelope, and FEEL for thickness, touch and brightness in plain words - Blend: pick two patches and get eight new ones, each with its own play button - Arpeggiator: up, down, up and down, random or as played, over one to three octaves, with Latch - Every MIDI keyboard plays: pitch bend, mod wheel, breath, sustain and aftertouch - Mono, legato, glide and glissando, and a truer DX7 sound: exact timing, feedback in every algorithm, the hardware's detune - The waveform follows what you play, with a Scope look; Patch of the day, in the app and as a widget - Open .syx banks from Files, Mail or AirDrop, export your bank as .syx, and Share Sound as a short clip

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    Seller
    MADE WITH BEST PRACTICE LLC
    Size
    63.6 MB
    Category
    Music
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Underwriter $49.99
    • Major Supporter $9.99
    • Supporting Member $19.99
    • Comrade! $4.99
    Copyright
    © Made with Best Practice LLC