XCent User Manual

Version 0.9.1 — April 2026

Table of Contents

  1. Introduction
  2. Requirements & Installation
  3. Interface Overview
  4. PLAY Mode
  5. EDIT Mode
  6. FUNC Mode
  7. Patch Management
  8. MIDI
  9. Settings
  10. FM Sound Design
  11. Appendix

Introduction

XCent is a circuit-faithful emulation of the Yamaha DX100 — a four-operator FM synthesizer built around Yamaha's YM2164 OPP chip. It runs the actual DX100 ROM firmware on an HD6303 CPU emulator for 100% accurate voice allocation and parameter handling. 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, organized into four read-only ROM banks (100, 200, 300, 400) of 24 voices each. Four writable RAM banks (A, B, C, D) are available for your own patches. 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 Visual knobs/sliders)
  • 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
Platforms Windows 10+, macOS 11+, iOS/iPadOS 16+, Linux (x86-64)
Formats VST3, CLAP, Standalone (desktop); AUv3, Standalone (iOS/iPadOS)
CPU Any modern x86-64 processor (desktop) or Apple Silicon/A-series (iOS). The DSP runs at native hardware rate (55,930 Hz) — allow for that in dense sessions.
RAM Minimal. Factory library is ROM-sourced and loaded on first use.

Installation

Windows:

# VST3
Copy-Item "XCent.vst3" -Destination "$env:ProgramFiles\Common Files\VST3" -Recurse

# CLAP
Copy-Item "XCent.clap" -Destination "$env:ProgramFiles\Common Files\CLAP"

macOS:

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

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

# AU (if included)
cp -r "XCent.component" ~/Library/Audio/Plug-Ins/Components/

Linux:

# VST3
cp -r "XCent.vst3" ~/.vst3/

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

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

User Data Location

After installation, XCent's factory library and preferences are stored in:

  • Windows: %APPDATA%\Knives On Strings\XCent
  • macOS: ~/Library/Application Support/Knives On Strings/XCent
  • Linux: ~/.config/KnivesOnStrings/XCent

The library folder location is configurable via Settings.

Interface Overview

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

Top Bar

From left to right:

Control Function
XCent Logo Branding. Does not perform any action.
◄ Patch name ► Displays the active patch name. Click to open patch browser. Arrows step through patches in the current bank.
⚙ Settings Opens Settings modal (themes, MIDI channel, audio device, user patches folder).
? About Opens About modal with version info and links.
🎹 Keyboard Toggles on-screen keyboard (49 keys, C2–C6).
CPU Real-time CPU load meter for this instance.
VU Output level meter (8-segment LED).
OUTPUT Master output level knob. Double-click to reset to unity (0 dB).

Left Panel

The left panel mirrors the DX100 hardware layout:

Control Function
LCD Display 16-character dot-matrix display showing current mode, patch name, and parameter values during editing. Available in Teal (authentic) or OLED Blue styles.
PLAY / EDIT / FUNC Mode selector buttons. Active mode is lit.
OP1–OP4 (EDIT mode only) Selects which operator's parameters are shown. Each button has an indicator dot; the lit one is active.
Bank buttons (PLAY mode only) Two rows of four LEDs: top row selects ROM banks (100, 200, 300, 400); bottom row selects RAM banks (A, B, C, D). Press PLAY again to toggle between ROM and RAM bank groups.
INC / DEC Increment/decrement the selected parameter. Hold for continuous stepping.
Data Knob Rotary data entry for the selected parameter (equivalent to INC/DEC but continuous).

Center Panel

Read-only information about the active patch:

Display Function
Algorithm Diagram Visual representation of operator routing. Shows carriers and modulators and how they connect. Click the dropdown to select algorithms 1–8 directly.
Envelope Display Graphical representation of the active operator's ADSR envelope (AR, D1R, D1L, D2R, RR). Updates in real time as you edit.

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
  • Visual Edit — Graphical knobs and sliders (toggle via second press of EDIT button; green indicator shows Visual Edit 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).

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):

Button Bank Voices
100 Bank 100 Patches 101–124
200 Bank 200 Patches 201–224
300 Bank 300 Patches 301–324
400 Bank 400 Patches 401–424

RAM banks (writable — your own patches):

Button Bank Voices
A Bank A Patches A 1–A24
B Bank B Patches B 1–B24
C Bank C Patches C 1–C24
D Bank D Patches D 1–D24

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. Visual Edit — Graphical knobs and sliders (press EDIT again to toggle; green indicator shows Visual Edit is active)

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:

Action Function
Click + Drag Drag up/down to change value. Faster than INC/DEC for large adjustments.
Shift + Drag Fine adjustment. Slower drag for precise changes.
Double-click Resets parameter to its value from the loaded patch (not init default). This is the "load point" — the state when the patch was last loaded.
Right-click (Operator parameters only) Copy menu — copy current operator's value (or all parameters) to other operators.
INC / DEC Increment/decrement by one step. Hold for continuous stepping.
Data Knob Continuous rotary entry for selected parameter.

Classic Edit

Parameter grid layout (6 columns × 4 rows):

Row Col 1 Col 2 Col 3 Col 4 Col 5 Col 6
1 ALG FBL FREQ DET OUT AMS ON
2 AR D1R D1L D2R RR KEY VEL
3 LW LFS LFD SYNC PMD AMD
4 LS RS EBS PMS AMS XPOSE

For full parameter descriptions, see the Visual Edit section below or the Yamaha DX100 Owner's Manual.

Visual Edit

Press EDIT twice to enter Visual Edit mode (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):

Control Parameter Range Description
AR Attack Rate 0–31 How quickly envelope rises from zero to peak after note-on. 31 = instant, 0 = slowest.
D1R Decay 1 Rate 0–31 How quickly level falls from peak to D1L sustain. 31 = instant, 0 = no decay.
D1L Decay 1 Level 0–15 Sustain level after initial decay. 0 = maximum sustain, 15 = decay to silence.
D2R Decay 2 Rate 0–31 Second, slower decay during sustain phase. Useful for sounds that die away while held. 0 = disabled.
RR Release Rate 0–15 How quickly envelope falls to zero after note-off. 15 = instant, 0 = slowest.

Frequency & Level (3 knobs):

Control Parameter Range Description
FREQ Frequency 0.5–31 Operator frequency as multiple of played note. 1 = unison, 2 = octave up, 0.5 = octave down. Non-integer values create inharmonic, bell-like or metallic tones. Primary timbre control.
DETUNE Fine Detuning -3 to +3 Shifts operator slightly sharp or flat. Subtle detuning between operators adds richness and movement. Center = no detune.
LEVEL Output Level 0–99 For carriers: volume contribution. For modulators: modulation depth (higher = brighter/more complex timbres).

Key Scaling & Modulation (3 knobs):

Control Parameter Range Description
L.SCL Left Key Scaling 0–99 Level change for notes below the scaling breakpoint. Positive = increase level toward bass, negative = decrease.
R.SCL Right Key Scaling 0–99 Level change for notes above the scaling breakpoint. Commonly used to reduce harshness in upper register.
EG.BS EG Bias Sensitivity 0–7 How strongly breath controller (CC2) modulates this operator's envelope. 0 = no effect.

Switches (2 toggles):

Control Parameter Description
AME Amplitude Mod Enable When ON, LFO amplitude modulation affects this operator (governed by A.DEP in Patch section).
KVS Key Velocity Sensitivity When ON, harder keypresses increase operator level. OFF = full level regardless of velocity.

LFO Section

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

Control Parameter Range Description
Waveform LFO Shape 4 choices Triangle (smooth vibrato/tremolo), Sawtooth (sweep), Square (trill), S&H (random stepped).
SPEED LFO Rate 0–99 How fast the LFO cycles. Low = slow modulation, high = fast tremolo/vibrato.
DELAY LFO Delay 0–99 Time after note-on before LFO begins. 0 = immediate, higher = delayed fade-in.

Patch Section

Voice-global parameters (apply to entire patch):

Structure (2 knobs):

Control Parameter Range Description
ALG Algorithm 1–8 Operator routing configuration. Determines carriers vs modulators. See Algorithm Reference.
FBL Feedback Level 0–7 OP4 self-feedback. 0 = none, higher = buzzy/noisy/chaotic tones. DX100 only feeds back OP4.

LFO Modulation (3 knobs + 1 toggle):

Control Parameter Range Description
P.DEP Pitch Mod Depth 0–99 LFO pitch modulation amount (vibrato width). Works with P.SNS and mod wheel.
A.DEP Amp Mod Depth 0–99 LFO amplitude modulation amount (tremolo) for operators with AME enabled.
P.SNS Pitch Mod Sensitivity 0–7 Scales P.DEP's effect. Master sensitivity for pitch LFO.
SYNC LFO Key Sync ON/OFF When ON, LFO resets phase on every note-on for consistent attack.

Tuning & Performance (6 knobs + 2 toggles):

Control Parameter Range Description
XPOSE Transpose -24 to +24 Shifts entire voice in semitones. Stored per-patch.
POLY Polyphony ON/OFF ON = polyphonic (8 voices), OFF = monophonic (latest note cuts earlier).
PORT Portamento ON/OFF Enables pitch glide between notes. Speed set by P.TIME.
P.TIME Portamento Time 0–99 Glide speed when portamento active. Higher = slower.
P.BEND Pitch Bend Range 0–12 Max pitch deviation in semitones at full pitch wheel deflection.

Controller Routing (6 knobs):

Control Parameter Range Description
MW.P Mod Wheel → Pitch 0–99 How much mod wheel (CC1) adds to vibrato (P.DEP).
MW.A Mod Wheel → Amplitude 0–99 How much mod wheel adds to tremolo (A.DEP).
BC.P Breath → Pitch 0–99 Breath controller (CC2) pitch modulation sensitivity.
BC.A Breath → Amplitude 0–99 Breath controller amplitude sensitivity (expression).
BC.PB Breath → Pitch Bias 0–99 Breath pressure applies DC offset to pitch (upward bend), not LFO modulation.
BC.EB Breath → EG Bias 0–99 Breath raises operator levels for operators with EG.BS > 0 (brightness/attack).

FUNC Mode

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

Parameter Description
M.TUNE Master Tune — fine-tunes entire instrument (±50 cents). Useful when matching hardware at non-concert pitch.
POLY/MONO Global polyphonic/monophonic mode (can also be set per-patch in EDIT).
PORT MODE Portamento mode: Full-time (always glide) or Fingered (glide only on legato).
PORT TIME Global portamento glide speed (can also be set per-patch in EDIT).
P.BEND Global pitch bend range in semitones (can also be set per-patch in EDIT).
MW PITCH Global mod wheel pitch modulation sensitivity.
MW AMPLITUDE Global mod wheel amplitude modulation sensitivity.
BC PITCH Global breath controller pitch sensitivity.
BC AMPLITUDE Global breath controller amplitude sensitivity.
BC PITCH BIAS Global breath controller pitch bias.
BC EG BIAS Global breath controller EG bias.

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). 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

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)

CC Function Description
1 Mod Wheel Adds to pitch/amp modulation per MW.P and MW.A settings
2 Breath Controller Modulates pitch/amp/EG bias per BC.P, BC.A, BC.PB, BC.EB settings
4 Foot Controller Expression (amplitude)
5 Portamento Time Real-time control of portamento speed
64 Sustain Pedal Hold notes (standard sustain behavior)
65 Portamento On/Off Toggle portamento without using front panel

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:

Program Patch
0 Slot 1
1 Slot 2
... ...
23 Slot 24

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

Bank Select value Bank
0 100 (ROM)
1 200 (ROM)
2 300 (ROM)
3 400 (ROM)
4 A (RAM)
5 B (RAM)
6 C (RAM)
7 D (RAM)

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

Setting Description
Engine Mode Vintage (authentic — includes YM3014 DAC + NJM072D analog filter) or Modern (clean — bypasses analog stage for alias-free FM).
User Patches Folder Location where RAM banks are stored. Default: platform-specific (see Installation). Click Browse to move it to a custom location (e.g., shared drive, project folder).

Appearance

Setting Options Description
Window Size 100%, 125%, 150%, 175%, 200% Plugin window scale. 100% = 800×600 px. Does not affect audio.
Skin Dark, Light Global color theme. Applies to all UI elements.
Matrix Display Teal, OLED Blue LCD display color. Teal = authentic DX100 LCD green. OLED Blue = modern blue OLED aesthetic.

MIDI / Audio

Setting Description
MIDI Receive Channel Omni (all channels) or 1–16 (specific channel). Plugin mode: use DAW routing. Standalone only.
Audio Device (Standalone only) Output device selection + sample rate.
MIDI Input (Standalone only) MIDI input device selection. Shows all available MIDI ports.

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

Algorithm 1

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

Algorithm 2

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

Algorithm 3

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

Algorithm 4

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

Algorithm 5

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

Algorithm 6

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

Algorithm 7

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

Algorithm 8

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

Action Windows/Linux macOS
Undo Ctrl+Z Cmd+Z
Redo Ctrl+Y or Ctrl+Shift+Z Cmd+Shift+Z
Save Patch Ctrl+S Cmd+S
Open Patch Browser Ctrl+O Cmd+O
Toggle On-Screen Keyboard Ctrl+K Cmd+K
Next Patch → →
Previous Patch ← ←
Mode: PLAY F1 F1
Mode: EDIT F2 F2
Mode: FUNC F3 F3

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

XCent User Manual v0.9.1 — April 2026
© 2026 Knives On Strings. XCent is licensed under the MIT License.

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