REXS vs LogSynth

Is your EXS24 library locked inside Logic? Years of collected instruments — factory banks, purchased libraries, your own patches — and all of it only opens on a Mac with Logic installed. On your iPad, on stage, at a friend's studio: unreachable. REXS sets that library free. HOW IT WORKS • CONVERT IN ONE DRAG Drag an .exs file (or a whole folder) into the app. REXS reads the instrument, finds its audio files and writes a faithful SoundFont (.sf2) — zones, key ranges, velocity splits, loops, envelopes, tuning. Your original file is never touched. • IT FINDS THE SAMPLES BY ITSELF EXS24 instruments reference external audio that drifts around over the years. REXS searches the instrument's folder, its neighbors and the whole tree — and if something is still missing, it asks you to point at the folder and resolves the rest. WAV, AIFF and CAF (including ALAC). • BUILD THEMED BANKS Combine instruments from any number of sources into a single .sf2: check, drag to reorder, rename, generate. "My favorite pads" in one file, ready for any sampler. • EDIT THE SOUND AND HEAR IT INSTANTLY Adjust each preset's volume, pan, tuning, attack, release and filter with the built-in player: play the on-screen keyboard or connect your MIDI controller. Stack presets as layers and balance the mix. • AUv3 PLUG-IN IN YOUR DAW Converted instruments show up directly in AUM, GarageBand, Logic, Cubasis and any AUv3 host — nothing to export. WHY REXS IS DIFFERENT • 100% ON YOUR DEVICE No cloud upload. No account. No cookies. No trackers. Your libraries (many of which you PAID for) never leave your iPhone, iPad or Mac. • YOUR ORIGINALS ARE SACRED REXS never modifies or deletes your files. Conversion creates new files; your .exs and audio stay exactly where they were. • ONE-TIME PURCHASE, NO SURPRISES No subscription, no in-app purchase, no "pro" tier. What you buy is the entire app. • UNIVERSAL A single app for iPhone, iPad AND Mac. Buy on any device, install on the others for free. WHO IT'S FOR • Live keyboard players using an iPad on stage • Producers who switched machines and "lost" their library • Anyone who moved away from Logic and wants their sounds back • Sound designers recombining banks • Beatmakers digging through vintage instruments ABOUT THE FORMATS EXS24 is the format of Logic's sampler (now "Sampler"), used by thousands of commercial and free libraries since 1999. SoundFont 2 (.sf2) is an open standard from 1995, alive in hardware samplers, plug-ins and mobile apps. REXS reads the former and writes the latter respecting 100% of the spec. GET STARTED Drag an .exs in (or tap "Add EXS24 files" and point at a folder). Check the presets, name it, generate. That's it. Your instruments, anywhere. — EXS24, Logic and GarageBand are trademarks of Apple Inc. REXS is an independent product compatible with files in the EXS24 format, and is not affiliated with or endorsed by Apple.

LogSynth is a polyphonic virtual-analog synthesizer built for people who care what's actually happening in the signal path, not just what the preset browser looks like. Every voice runs five anti-aliased oscillators (sine, triangle, saw, pulse with PWM, and a band-limited impulse train) plus a dedicated sub-oscillator and noise source, mixed per-voice with independent amp envelopes. Chunky oscillators, crisp effects and a zero-delay-feedback state-variable filter — switchable low/high/bandpass. The drive effect is powered by a physically modeled diode circuit, numerically integrated rather than a lookup-table approximation, so pushing it into saturation behaves the way an actual analog drive would. FEATURES - 8-voice polyphony, 5 oscillators + sub + noise per voice - Zero-delay-feedback state-variable filter with resonant feedback and diode drive saturation - 5 independent oscillator envelopes plus a dedicated filter envelope - 2 assignable LFOs and an 8-slot modulation matrix - Built-in chorus, delay, FDN reverb, and 4-mode distortion - 41 factory presets across Bass, Lead, Pluck, and Effects - One-tap patch randomizer with adjustable intensity - Real-time oscilloscope, on-screen keyboard, and CoreMIDI input - Runs standalone or as an AUv3 instrument inside AU hosts Whether you're sound designing from scratch or dropping it into a DAW as a plugin, Logsynth gives you the same engine everywhere — no watered-down mobile version, no feature gating between standalone and plugin modes.