Redux vs sfizz

Redux is a sample-based instrument that combines a phrase sequencer with MIDI implementation. Its tracker notation lets users enter notes and control sample playback precisely, while the sequencer creates phrases using notes and program-change events. Redux can send MIDI note events to its host so the tracker interface can trigger instruments in a DAW. Effects and a quasi-modular system let devices modulate one another. The waveform editor can adjust volume, remove leading or trailing silence, apply effects, and slice samples; those edits are saved with the preset. A built-in recorder and draw tool support sample creation, and drag-and-drop import accepts common audio formats, including SFZ multisamples. Users can save and recall presets by section, add content libraries by dragging and dropping, and connect eight global macro controls to multiple parameters and functions. Redux is a plugin, not a standalone app, and runs in a DAW that supports VST3 or Audio Unit. It is available for Linux, macOS, and Windows. The demo is otherwise fully functional but generates a subtle hiss. A Redux license costs $5,600 as a one-time purchase and covers versions 1.4.4 to 2.4.4.

sfizz is a sample-based musical synthesizer built around the SFZ instrument format. It can load existing SFZ libraries or support the creation of personal instruments. The software supports SFZv1 and has partial compatibility with SFZv2, so some features of the newer format may not work fully. sfizz is available as VST3i, Audio Unit and LV2 plugins, as well as a standalone JACK client. Instrument makers can use hot reload to revise custom instruments and check changes without manually operating the software. Its streaming system loads sounds when needed and reclaims memory once sounds are no longer in use. Developers can integrate the engine into other programs with C and C++ API bindings; it accepts an SFZ file and MIDI-type events and renders audio through successive callbacks. Downloads include Linux packages, Windows 32-bit and 64-bit installers, and a universal macOS package for Intel and Apple Silicon. The project requires no payment to use, with optional donations. Its repository was archived on June 21, 2026 and is read-only.