XCent User Manual

Version 0.15.21 — September 2026

Introduction

XCent is a circuit-faithful emulation of the Yamaha DX100 — a four-operator FM synthesizer built around Yamaha's YM2164 OPP chip. It models the hardware's whole signal chain: incoming MIDI is turned into chip register writes the way the original's firmware does, a cycle-accurate YM2164 emulation generates the audio, and that passes through models of the hardware's DAC and analog output stage. The FM engine operates at the chip's native 55,930 Hz sample rate, resamples to your host's rate, and emulates the hardware's DAC quantization, aliasing characteristics, and reconstruction filter behavior.

XCent ships with the 192 factory voices from the original DX100 ROM, 24 per bank. 96 factory voices fill the four read-only ROM banks (100, 200, 300, 400); the other 96 factory voices arrive pre-loaded in the four writable RAM banks (A, B, C, D), where you can play them as they are or save your own patches over them. All eight FM algorithms are supported, with full four-operator control and OP4 self-feedback.

The interface provides three operating modes matching the DX100 hardware:

• PLAY — Browse and load patches
• EDIT — Edit voice parameters (Classic button grid or Modern knob/slider view)
• FUNC — Global settings (Master Tune, MIDI channel, portamento, etc.)

This manual covers XCent-specific operation: installation, the interface, patch management, MIDI, and preferences. FM synthesis theory and sound design technique are not covered here. The DX100 and XCent share the same synthesis engine, and the Yamaha DX100 Owner's Manual is the authoritative reference for those topics.

Requirements & Installation

System Requirements

Installation

Windows (recommended — installer):

Download the XCent-Setup-<version>.exe installer (currently XCent-Setup-0.15.21.exe) and run it. The installer:

• Places VST3, CLAP, and Standalone in their standard system folders automatically
• Installs the Microsoft Edge WebView2 runtime if it isn't already present
• Adds an entry to Add/Remove Programs for clean uninstallation
• Clears any stale WebView2 cache from previous installs

Windows (manual):

From the extracted zip:

# VST3 — copy the entire XCent.vst3 folder
Copy-Item "plugins\VST3\XCent.vst3" -Destination "$env:ProgramFiles\Common Files\VST3" -Recurse

# CLAP — NukedOPP.dll must stay next to XCent.clap; the plugin loads its chip
# emulator from its own folder and is silent without it
Copy-Item "plugins\CLAP\XCent.clap" -Destination "$env:ProgramFiles\Common Files\CLAP"
Copy-Item "plugins\CLAP\NukedOPP.dll" -Destination "$env:ProgramFiles\Common Files\CLAP"

If you install manually, you may need to install the Microsoft Edge WebView2 runtime separately.

macOS (recommended — installer):

XCent requires macOS 15 Sequoia or later; the installer refuses to run on older versions. It runs natively on both Apple Silicon and Intel Macs.

Download XCent-<version>-macos.dmg (currently XCent-0.15.21-macos.dmg), open it, and double-click the .pkg inside. The installer lets you choose which formats to install:

• VST3 → /Library/Audio/Plug-Ins/VST3/ (system-wide, visible to all DAWs)
• CLAP → /Library/Audio/Plug-Ins/CLAP/
• AU (Audio Unit) → /Library/Audio/Plug-Ins/Components/
• Standalone → /Applications/

Gatekeeper notice (early releases): Until XCent is distributed with a Developer ID certificate, macOS will block the installer and plugins with a security warning. To proceed:

1. When the warning appears, click OK to dismiss it.
2. Open System Settings → Privacy & Security.
3. Scroll down to the Security section — you'll see a message about XCent being blocked.
4. Click Open Anyway, then confirm in the dialog that follows.

You may need to do this once for the installer and once for each plugin format the first time your DAW loads it. This is a one-time step per format.

macOS (manual):

If you'd rather not run the installer, place the plugin formats yourself:

# VST3
cp -r "plugins/VST3/XCent.vst3" ~/Library/Audio/Plug-Ins/VST3/

# CLAP
cp -r "plugins/CLAP/XCent.clap" ~/Library/Audio/Plug-Ins/CLAP/

# AU
cp -r "plugins/AU/XCent.component" ~/Library/Audio/Plug-Ins/Components/

# Standalone
cp -r "plugins/Standalone/XCent.app" /Applications/

If macOS quarantines the copied files, run the included helper script (it also refreshes the AU cache automatically):

bash clear-quarantine.sh

Or clear the quarantine flag manually:

xattr -dr com.apple.quarantine ~/Library/Audio/Plug-Ins/VST3/XCent.vst3
xattr -dr com.apple.quarantine ~/Library/Audio/Plug-Ins/CLAP/XCent.clap
xattr -dr com.apple.quarantine ~/Library/Audio/Plug-Ins/Components/XCent.component
xattr -dr com.apple.quarantine /Applications/XCent.app

macOS uninstall:

The DMG ships an uninstall.sh script alongside the .pkg. Mount the DMG, open Terminal in the mounted volume, and run:

./uninstall.sh                  # remove plugins + Standalone (keep user data)
./uninstall.sh --purge          # also remove ~/Documents/KnivesOnStrings/XCent/
./uninstall.sh --dry-run        # preview what would be removed
./uninstall.sh --yes            # skip confirmation prompt

The script removes the four installed components from /Library/Audio/Plug-Ins/{VST3,CLAP,Components}/ and /Applications/, forgets the pkgutil receipts, and refreshes the AU cache. Your user banks, preferences, and logs (under ~/Documents/KnivesOnStrings/XCent/) are preserved by default — pass --purge to remove those too.

If you no longer have the DMG, the same removal can be done manually:

sudo rm -rf "/Library/Audio/Plug-Ins/VST3/XCent.vst3"
sudo rm -rf "/Library/Audio/Plug-Ins/CLAP/XCent.clap"
sudo rm -rf "/Library/Audio/Plug-Ins/Components/XCent.component"
sudo rm -rf "/Applications/XCent.app"
sudo pkgutil --forget com.knivesonstrings.xcent.vst3
sudo pkgutil --forget com.knivesonstrings.xcent.clap
sudo pkgutil --forget com.knivesonstrings.xcent.au
sudo pkgutil --forget com.knivesonstrings.xcent.standalone
killall -9 AudioComponentRegistrar 2>/dev/null || true

Linux (recommended — installer):

Download XCent-<version>-linux-x86_64.tar.gz (currently XCent-0.15.21-linux-x86_64.tar.gz), extract it, and run install.sh:

tar -xzf XCent-0.15.21-linux-x86_64.tar.gz
cd XCent-0.15.21-linux-x86_64
./install.sh                # per-user install (default)
./install.sh --system       # system-wide install (requires sudo)
./install.sh --uninstall    # remove a previous install

The installer places:

• Per-user (default) — VST3 in ~/.vst3/, CLAP in ~/.clap/, LV2 in ~/.lv2/, Standalone in ~/.local/bin/.
• System-wide (--system) — VST3 / CLAP / LV2 under /usr/lib/, Standalone in /usr/local/bin/.

It also copies the LGPL-2.1 NOTICES.txt file alongside the binaries so the LGPL component (Nuked-OPP) carries its required attribution at the install site.

Linux (manual):

If you'd rather not run a script, the bundle's contents can be copied manually:

# VST3 — copy the entire XCent.vst3 folder
cp -r VST3/XCent.vst3 ~/.vst3/

# CLAP
cp CLAP/XCent.clap ~/.clap/

# LV2 — copy the entire XCent.lv2 folder
cp -r LV2/XCent.lv2 ~/.lv2/

# Standalone
cp Standalone/XCent ~/.local/bin/

If you choose the manual route, also copy NOTICES.txt somewhere discoverable (e.g. ~/.local/share/doc/xcent/) so the LGPL attribution is preserved.

iOS/iPadOS: Install via the App Store or TestFlight (beta).

User Data Location

Everything XCent writes for you lives in one folder inside your Documents folder: the patch library (Library), your preferences, and the log file. The path is the same on all three desktop platforms:

• Windows: Documents\KnivesOnStrings\XCent
• macOS: ~/Documents/KnivesOnStrings/XCent
• Linux: ~/Documents/KnivesOnStrings/XCent

On Windows, that is wherever Windows currently keeps your Documents folder. If Documents is redirected into OneDrive — as it is on many PCs — XCent's folder goes with it, at OneDrive\Documents\KnivesOnStrings\XCent. To see the folder itself, use Settings → Sound → User Patches Folder → Browse, which opens the Library folder inside it in your file manager.

The location is fixed — Settings does not move it. To put XCent's data somewhere else (a portable install, or a second profile), set the XCENT_SETTINGS_DIR environment variable to an absolute path before launching your DAW or the Standalone app; XCent then uses that folder for all of it.

Interface Overview

XCent's window is divided into four main areas: Top Bar, Left Panel, Center Panel, and Patch Browser/Parameter Grid (right panel).

First-run tour

The first time you open XCent, an onboarding tour starts automatically a moment after the UI finishes loading. A spotlight overlay walks through nine steps — Modes, Operators, parameter editing, Modern view, Func mode, and the Patch browser. Each step has a Skip button if you want to jump straight in, and a Next → button to advance.

The tour only runs once. To re-run it later (e.g., to refresh, or to show a colleague), open Settings → Appearance → Onboarding and click Run interface tour again.

Tooltips

Hovering a parameter button (in Classic Edit, Func mode, or on a Modern view knob/slider) shows a tooltip after a 500 ms delay containing the full parameter name and value range — handy if a 3-letter abbreviation isn't immediately obvious. Tooltips can be disabled in Settings → Appearance → Input.

Top Bar

From left to right:

Left Panel

The left panel mirrors the DX100 hardware layout:

Center Panel

Read-only information about the active patch:

Patch Browser / Parameter Grid (Right Panel)

In PLAY mode: Shows the patch browser (6×4 grid, 24 slots per bank). Click any slot to load that patch immediately. The active patch is highlighted.

In EDIT mode: Shows either:

• Classic Edit — 4×6 button grid matching DX100 hardware layout
• Modern view — Graphical knobs and sliders (toggle via second press of EDIT button; green indicator shows Modern view is active)

PLAY Mode

PLAY is the default mode. Browse and load patches; no parameters are editable here.

The LCD displays the current patch number and name (e.g., 101: IVORYEBONY).

Navigating Banks

XCent organizes patches into two groups of banks. Use the bank buttons on the left panel or the patch browser to select the active bank:

ROM banks (read-only — original DX100 factory voices):

RAM banks (writable — your own patches):

Press PLAY again while already in PLAY mode to toggle between the ROM bank group and the RAM bank group.

Selecting a Patch

• Click any slot in the browser grid
• Use ◄ ► arrows in the top bar to step through the current bank
• Use INC/DEC buttons to step through patches

Favorites & Recents

Above the bank selector:

• ★ Favorites — Shows all starred patches from any bank
• 🕐 Recents — Shows the last 24 loaded patches

Click the star icon on any patch to toggle its favorite status.

EDIT Mode

EDIT mode exposes all voice parameters. Two views are available:

1. Classic Edit — Button grid matching DX100 hardware (default)
2. Modern view — Graphical knobs and sliders (press EDIT again to toggle; green indicator shows Modern view is active). To make Modern view the default when entering EDIT mode, enable Default to Modern view in Settings → Appearance → Input.

Both views modify the same parameters. The active operator (OP1–OP4) is selected via the left panel buttons.

Note: Edits modify a working copy of the patch. Use Save in the patch browser to commit changes. Unsaved edits survive mode switches but are lost if you load a different patch without saving. A red indicator in the top bar shows when the edit buffer is dirty (has unsaved changes).

Data Entry

All parameters support these interactions:

Classic Edit

Parameter grid layout (6 columns × 4 rows):

For full parameter descriptions, see the Modern view section below or the Yamaha DX100 Owner's Manual. Hovering any parameter button shows a tooltip with the full parameter name and value range (toggleable in Settings → Appearance → Input).

Modern view

Press EDIT twice to enter Modern view (green indicator on EDIT button confirms active). The parameter area is divided into three sections: Operator, LFO, and Patch.

Operator Section (OP1–OP4)

Select the active operator using the OP1–OP4 buttons on the left panel. Each operator has independent parameters:

Envelope (5 sliders):

Frequency & Level (3 knobs):

Key Scaling & Modulation (3 knobs):

Switches (2 toggles):

LFO Section

Voice-global LFO parameters (shared by all four operators):

Patch Section

Voice-global parameters (apply to entire patch):

Structure (2 knobs):

LFO Modulation (3 knobs + 1 toggle):

Tuning & Performance (6 knobs + 2 toggles):

Controller Routing (6 knobs):

FUNC Mode

FUNC mode contains global performance and MIDI settings. These are not stored per-patch — they apply to the entire XCent instance.

SCOPE

The SCOPE button in the top bar opens the XCent Scope — a floating window that displays the current patch's waveform as an animated 3D waterfall. Play any note and watch the harmonics reshape in real time; tweak parameters and see the results immediately.

Live Mode

Click SCOPE in the top bar to open the window. Play any note on the keyboard — the most recent voice's pre-filter output scrolls into the waterfall. Older frames fade toward the back of the stack. The frontmost (brightest) trace is the current cycle; older frames fade as they recede.

Controls at the bottom of the scope window:

Mouse gestures on the canvas:

Themes

Choose the trace colour in Settings → Appearance → XCENT SCOPE:

Theme changes apply immediately to an open scope window and persist across plugin sessions.

Window

• Minimum 500 × 360 pixels; default 720 × 500; resizable.
• Position and size persist across plugin sessions.
• On iOS, Scope opens as a fullscreen sheet (coming in a future update).

Render Mode

Click the RENDER tab to synthesise a wavetable from the current patch. The render runs on a background thread (~100–250 ms for a 256-frame capture) and drops the result into the waterfall display.

Controls:

The rendered wavetable is stable — it doesn't scroll. Use the same mouse gestures (drag, wheel, double-click) to inspect it.

Switching between LIVE and RENDER tabs preserves both buffers: the live scope keeps its rolling frames while the render tab holds the last completed render.

Wavetable export

Coming in a future update — the Export… button on the Render tab will save the rendered wavetable as Serum .wav (with ClmS + uhWT chunks), Vital .vital, Surge .wt, or plain WAV for u-he Zebra / Hive / generic wavetable consumers.

Patch Management

Banks

XCent has two types of banks:

• ROM banks (100, 200, 300, 400): 96 original DX100 factory voices, read-only. These match the hardware's factory ROM exactly. Patch slots are numbered in the DX100 style: bank 100 contains patches 101–124, bank 200 contains 201–224, and so on.

• RAM banks (A, B, C, D): 96 writable slots for your own patches (24 per bank), pre-loaded with the other 96 factory voices so no slot starts empty — save over any slot to make it yours. Patch slots are displayed as A 1–A24, B 1–B24, etc. RAM bank contents are automatically saved to disk when changed.

Saving a Patch

After editing:

1. Click SAVE button in the patch browser (or right-click a slot → Save here)
2. Select a destination RAM bank (A–D) and slot
3. Enter a patch name (10 characters max, DX100 compatible)
4. Click Save

ROM banks are read-only and cannot be overwritten. The red "dirty" indicator in the top bar disappears when changes are saved.

Favorites & Recents

• ★ Favorites — Click the star icon on any patch to add it to Favorites. Access via PLAY mode → Favorites view.
• 🕐 Recents — Automatically tracks the last 24 loaded patches. Access via PLAY mode → Recents view.

Drag and Drop

Patches can be reordered within a bank and moved between banks:

• Move: Click and drag from one slot to another
• Copy: Hold Shift while dragging
• Swap: Drag occupied slot onto another occupied slot

Dragging to a ROM bank slot is not permitted.

Rename & Delete

Right-click any patch slot in a RAM bank:

• Rename — Change patch name (10 chars max)
• Delete — Clear slot (confirmation required)
• Initialize — Reset slot to init patch (all parameters to default)

SysEx Import & Export

XCent is compatible with standard DX100 SysEx formats:

Export:

• Single voice (VCED) — Right-click patch → Export SysEx → saves as .syx file
• Bank (VMEM) — Right-click bank header → Export Bank → saves 32 voices as .syx

A DX100 bank dump always carries 32 voices while a bank holds 24: XCent pads the extra eight with initialized voices on export, and discards them on import, as the hardware does.

Import:

• Drag .syx file onto patch browser
• Or right-click → Import SysEx → select .syx file

Imported bank dumps load into the first RAM bank (A). Compatible with hardware DX100 units and librarians:

• Dexed
• DX Manager
• Patch Base
• MIDI Quest
• Any DX100/DX21/DX27 compatible editor

MIDI

MIDI Channel

Plugin mode (VST3/CLAP): Responds to the MIDI channel configured in your DAW's instrument routing.

Standalone mode: Select MIDI channel in Settings → MIDI / Audio tab:

• Omni — Responds to all channels
• 1–16 — Responds only to the selected channel

Control Change (CC)

Pitch Bend

Full-resolution 14-bit pitch bend. Range is set:

• Per-patch: P.BEND in EDIT mode (Patch section)
• Globally: P.BEND in FUNC mode

Default range is 2 semitones (±2). Maximum range is 12 semitones (±1 octave).

Velocity

Velocity sensitivity is controlled per-operator via KVS (Key Velocity Sensitivity) in EDIT mode:

• 0 — No velocity sensitivity (operator always at full level)
• 1–7 — Increasing velocity response (7 = maximum dynamic range)

Each operator can have independent velocity sensitivity. This allows, for example:

• Carrier with KVS=0 for constant level
• Modulator with KVS=7 for velocity-sensitive brightness

Program Change

Program Change messages (0–127) load patches from the active bank:

Bank Select (CC 0 / CC 32) switches banks before sending Program Change:

Portamento

Two portamento modes (set via PORT MODE in FUNC mode):

1. Full-time — Glide always active between consecutive notes
2. Fingered — Glide only when notes overlap (legato playing)

Portamento time is controlled by:

• PORT TIME in FUNC mode (global)
• P.TIME in EDIT mode Patch section (per-patch)
• CC 5 (real-time MIDI control)

SysEx

XCent responds to and transmits standard DX100 SysEx messages over MIDI:

Receive:

• VCED (single voice dump) — Loads into edit buffer
• VMEM (32-voice bank dump) — Imports bank to RAM bank A

Transmit:

• VCED — Sends edit buffer on request from librarian
• VMEM — Sends current bank (32 voices) on request

SysEx exchange works bidirectionally with:

• Hardware DX100/DX21/DX27 units
• Software librarians (Dexed, DX Manager, etc.)
• Generic MIDI SysEx utilities

Settings

Click the ⚙ icon in the top bar to open Settings. Three tabs:

Sound

Appearance

MIDI / Audio

Settings are saved automatically and persist across sessions.

FM Sound Design

XCent uses the same four-operator FM synthesis engine as the Yamaha DX100. Every parameter works identically to the hardware. If you know how to program a DX100, you know how to program XCent.

The Yamaha DX100 Owner's Manual is a thorough resource for FM synthesis theory and sound design technique. It applies directly to XCent.

XCent-Specific Features

XCent adds modern conveniences not available on the hardware:

• Undo/redo — Available via Ctrl+Z / Ctrl+Y (or Cmd+Z / Cmd+Shift+Z on macOS). Explore freely without fear.
• Visual Edit view — All parameters accessible simultaneously without sequential button navigation.
• Algorithm diagram — Visual operator routing updates in real time as you change ALG.
• Envelope display — Envelope shape updates live as you edit stages.
• Favorites & Recents — Quick access to frequently-used patches.
• On-screen keyboard — 49-key (C2–C6) keyboard with pitch and mod wheels. Play from the plugin window without a MIDI controller.
• Drag and drop — Reorder patches within and between RAM banks.

Authentic Hardware Behavior

XCent intentionally preserves the hardware's character:

FM aliasing: Native 55,930 Hz sample rate means sidebands fold back into the audible range. This is not a bug — it's the DX100 sound. Higher frequency ratios and feedback create brighter, noisier tones due to aliasing.

DAC quantization: YM3014 floating-point DAC (10-bit mantissa + 3-bit exponent) introduces subtle quantization artifacts at low levels. Audible as noise floor grain.

Reconstruction filter: NJM072D analog low-pass filter (-3 dB at ~10,600 Hz) with soft treble rolloff. Authentic DX100 warmth.

Integer signal path: All DSP computed at hardware bit widths (20-bit phase, 14-bit operators, 13-bit EG). No floating-point "cleaning" — bit-exact to the chip.

To bypass these characteristics: Set Engine Mode to Modern in Settings → Sound. This skips the analog output stage for clean, alias-free FM (still at 55,930 Hz native rate, but without DAC quantization or filter coloration).

Appendix

Algorithm Reference

XCent supports all eight DX100 FM algorithms. Each algorithm defines which operators are carriers (produce audible output) and which are modulators (shape carrier timbre).

Algorithm 1: Linear Stack

OP1 → OP2 → OP3 → OP4 → OUT

Four operators in series. Maximum modulation depth. Useful for complex, evolving timbres and aggressive, metallic sounds.

Algorithm 2: Three Modulators + Carrier

OP1 → OP2 → OP3 → OP4 → OUT
(OP4 is the sole carrier)

Three modulators feeding one carrier. Extreme timbral complexity. Good for bells, gongs, and dense harmonic content.

Algorithm 3: Dual Stacks

OP1 → OP2 → OUT
OP3 → OP4 → OUT

Two independent 2-operator chains. Useful for layered sounds: bass + lead, pad + pad, dual timbres.

Algorithm 4: Two Modulators + Two Carriers

OP1 → OP2 → OUT
OP3 → OUT
OP4 → OUT

One modulated carrier + two pure carriers. Good for adding brightness or octaves to a modulated tone.

Algorithm 5: Two Carriers, Two Chains

OP1 → OP2 → OUT
OP3 → OP4 → OUT

Two independent carriers, each with one modulator. Balanced complexity. Versatile for pads, leads, basses.

Algorithm 6: Three Independent Carriers + One Modulator

OP1 → OP2 → OUT
OP3 → OUT
OP4 → OUT

One modulated carrier + two pure carriers. Similar to Alg 4 but different routing. Useful for adding harmonics.

Algorithm 7: Three Carriers + One Modulated Pair

OP1 → OUT
OP2 → OUT
OP3 → OP4 → OUT

Three independent carriers: two pure, one modulated. Good for organ-like tones, stacked harmonics.

Algorithm 8: Four Independent Carriers

OP1 → OUT
OP2 → OUT
OP3 → OUT
OP4 → OUT

Four sine waves (no modulation). Pure additive synthesis. Useful for organs, simple waveforms, tuned percussion.

Note: OP4 self-feedback is available in all algorithms. Set FBL > 0 to add harmonics, noise, or chaotic character.

Keyboard Shortcuts

Known Issues

See bugs.md in the repository for current known issues and workarounds.

Support

Bug reports & feature requests: GitHub Issues

General questions: knivesonstrings@gmail.com

Website: knivesonstrings.com/xcent

Source code: github.com/Knives-On-Strings/xcent

Trademarks & Attribution

Yamaha and DX100 are trademarks of Yamaha Corporation. XCent is an independent emulation, not affiliated with or endorsed by Yamaha.

ASIO is a trademark and software of Steinberg Media Technologies GmbH. ASIO support is included in the Windows Standalone build to allow users to connect ASIO-compatible audio interfaces.

VST is a trademark of Steinberg Media Technologies GmbH.

Apple, macOS, iOS, iPadOS, and Audio Units (AU/AUv3) are trademarks of Apple Inc.

Windows is a trademark of Microsoft Corporation.

Open-Source Components

XCent's compiled binary statically links the following open-source libraries:

• Nuked-OPP — Cycle-accurate YM2164 (OPP) emulator. A modified fork of Nuke.YKT's Nuked-OPM with DX100-specific behavioural tweaks and renamed symbols. Original © 2020, 2026 Nuke.YKT; modifications © Knives on Strings. Licensed under the GNU Lesser General Public License version 2.1 (LGPL-2.1-or-later). Modified source available at the Knives on Strings public GitHub organization (URL in NOTICES.txt) and on request via knivesonstrings@gmail.com.
• JUCE 9 — Cross-platform audio plugin framework. © Raw Material Software Limited. Used under the JUCE 9 license, not under the AGPLv3.
• clap-juce-extensions — CLAP format support for JUCE. © 2019–2020 Paul Walker. MIT License.
• VST3 SDK — © Steinberg Media Technologies GmbH. Used under MIT License (via JUCE).
• React + React DOM — © Meta Platforms. MIT License.
• Zustand — MIT License.
• Tailwind CSS — MIT License.
• Inter typeface by Rasmus Andersson — SIL Open Font License 1.1.

Acknowledged as an upstream reference but not linked into the shipped product:

• Nuked-OPM — Original YM2151 emulator by Nuke.YKT (LGPL-2.1-or-later). Used by the test suite as a verification baseline for Nuked-OPP.

The complete third-party notices are in NOTICES.txt, and the full license texts in the licenses folder beside it; both come with every XCent download.

XCent User Manual v0.15.21 — September 2026
© 2026 Knives on Strings. All rights reserved.

For the most up-to-date version of this manual, visit knivesonstrings.com/xcent/manual.