1. Executive Summary & Key Highlights
vanBuffelen Multi Harmonic Sweetener is a state-of-the-art multiband analog saturation, dynamic sculpting, tonal balance, and mastering suite engineered in Rust using SIMD-accelerated DSP. It combines 7 discrete frequency bands, 9 analog and digital saturation flavors (ranging from classic tubes and tape to physical circuit simulations of vacuum triodes and magnetic transformer hysteresis), per-band soft-knee compression and downward expansion gating, 16 intelligent sweetening macros, an automated 3-pass Master Assistant, and an EBU R128 / True Peak broadcast metering suite.
Multi Harmonic Sweetener: Full mastering interface featuring 7-Band Spectrum Analyzer, Tonal Target Envelope, Broadcast Metering, Goniometer Vectorscope, and 1720 × 1040 Zero-Tab Console.
🎯 7 Discrete Bands
Zero-phase degradation Linkwitz-Riley (LR4) IIR with 15 all-pass phase compensators, or pristine 2048-tap Linear-Phase FIR convolution.
🔥 9 Saturation Flavors
Tube, Tape, Foldback, Hard Clip, Wavefolder, Chebyshev Polynomials, Triode Circuit (Child-Langmuir), Transformer (Jiles-Atherton), and 12AX7 Preamp.
✨ 16 Smart Macros
Sub Weight, Bass Punch, Warmth, Mud Removal, Vocal Presence, Clarity, Air, Stereo Width, Density Glue, Loudness, and Harshness Taming.
📊 Master Diagnostic Report
Automated 3-pass analysis matching your mix against 22 genre curves or external reference tracks (.wav, .flac, .mp3, .ogg, .aac).
2. Signal Flow & Multiband DSP Architecture
The internal signal path is designed to prevent aliasing, preserve transient punch, and eliminate inter-band phase cancellation across all crossover points:
M = (L + R) / √2, S = (L - R) / √2.LR4 IIR vs. Linear Phase FIR Crossover Modes
Traditional multiband processors suffer from phase smearing at crossover points. Harmonic Sweetener offers two zero-compromise filter topologies:
- IIR (Low Latency): 4th-order Linkwitz-Riley (24 dB/octave roll-off). Phase shifts are neutralized using 15 cascaded all-pass phase-matching filters (
ap_b0..ap_b4) ensuring flat magnitude and phase summation. Ideal for tracking and low-latency monitoring. - Linear Phase (HQ): 2048-tap FIR filter bank computed via 4096-point Overlap-Save FFT convolution. Completely eliminates phase rotation across all frequencies, making it pristine for mastering and stem summing.
3. Graphical Interface & Top Toolbar
The top toolbar provides immediate session management and DSP mode configuration:
Top Toolbar: Preset Browser, Save As, Undo/Redo, Reset, A/B Comparison, Stereo vs Mid/Side, Oversampling Factor, and Diagnostic Report launcher.
📁 Preset Management
Direct categorization browser with factory presets and custom user preset saving to disk (~/.config/vanbuffelen/presets/).
↺ Non-Destructive Undo / Redo
Every slider movement and macro adjustment pushes undo states upon mouse release, allowing instant session history audits.
⚖️ A/B Comparison
Store and hot-swap between two independent parameter states to audit different mastering or saturation treatments with zero click artifacts.
📊 Master Diagnostic Report
One-click floating audit window analyzing dynamic crest factor warnings, sub-bass stereo leakage, and spectral match scores.
Polyphase Oversampling (2x, 4x, 8x, 16x) & HQ FIR
Non-linear saturation algorithms generate overtones that can exceed the Nyquist frequency, reflecting back as harsh digital aliasing. Harmonic Sweetener offers up to 16x oversampling. At 48 kHz, processing occurs internally at 768 kHz. The HQ Toggle activates 63-tap linear-phase FIR halfband filters across all polyphase stages for extreme harmonic purity.
4. Real-Time Visualizers & Broadcast Metering Suite
Harmonic Sweetener integrates high-precision visual analyzers driven by a dedicated background thread utilizing rustfft and Hann windowing:
8192-point FFT Spectrum Analyzer with Pink Noise tilt and 7-Band Tonal Balance target bar.
8192-Point FFT & Tonal Balance Bar
- Fine Frequency Resolution: Resolves frequency bins down to 5 Hz in the sub-bass.
- Triple Curve Overlay: Cyan (Input), Bright White (Processed Output), Yellow Dashed (Reference Target).
- Spectral Tilt: Flat (0 dB/oct), Pink Noise standard (3.0 dB/oct), or modern Pop/EDM slope (4.5 dB/oct).
- 7-Band Tonal Target Bar: Real-time vertical energy bars displaying compliance within the target genre envelope.
Broadcast Metering: Peak/RMS, Crest Factor, Lissajous Vectorscope, Phase Bar, and Rolling LUFS History.
Vectorscope & EBU R128 LUFS Meter
- Lissajous Vectorscope: Polar goniometer display for stereo spread, width, and mono compatibility.
- Phase Correlation Bar: Real-time readout from -1.0 (out-of-phase) to +1.0 (mono coherent).
- EBU R128 LUFS: Integrated (M_I), Short-Term (S), Momentary (M), and Loudness Range (LRA).
- 3-Minute Rolling History: Continuous scrolling plot charting loudness dynamics over time.
5. Single-Screen Mastering Console Architecture
Unlike legacy multiband processors with buried tabs and hidden menus, Multi Harmonic Sweetener features a unified 1720 × 1040 Zero-Tab Console. Every frequency band, saturation engine, bus macro, and broadcast meter is simultaneously visible and interactively adjustable on one screen.
📈 Interactive 7-Band Spectrum & EQ/Drive Canvas
Interactive Spectrum: 8192-point FFT, draggable crossover split lines, EQ gain & Drive nodes ①–⑦, harmonic glow, and genre target corridor.
The upper center canvas combines deep FFT analysis with immediate physical control:
🎯 Interactive Nodes ①–⑦
Drag nodes vertically to adjust per-band EQ gain (-24 to +12 dB). Hold Shift or scroll the mouse wheel over any node to dial in Saturation Drive (0% to 100%) on the fly.
✂ Draggable Split Boundaries
Drag vertical split lines directly on the frequency spectrum to reposition the 6 crossover points (SUB, LOW, LO-MID, MID, HI-MID, PRES, AIR) with real-time audio smoothing.
✨ Harmonics Glow & Target Corridor
Toggle ✨ Harmonics to visualize the generated saturation overtones, and 🎯 Match Target EQ to display the dynamic corridor for the selected target profile.
| Split | Band Division | Default Frequency | Adjustable Range |
|---|---|---|---|
| Split 1 | SUB / LOW | 60 Hz | 20.0 Hz – 200.0 Hz |
| Split 2 | LOW / LOMID | 250 Hz | 100.0 Hz – 500.0 Hz |
| Split 3 | LOMID / MID | 500 Hz | 300.0 Hz – 1000.0 Hz |
| Split 4 | MID / HIMID | 1500 Hz | 1000.0 Hz – 3000.0 Hz |
| Split 5 | HIMID / PRES | 4500 Hz | 2000.0 Hz – 8000.0 Hz |
| Split 6 | PRES / AIR | 10000 Hz | 6000.0 Hz – 16000.0 Hz |
🎛 7 Multiband Channel Strips (SUB through AIR)
7 Multiband Console Strips: Dedicated channel strips for SUB, LOW, LO-MID, MID, HI-MID, PRES, and AIR with full analog saturation and dynamics.
Each of the 7 bands is equipped with an independent analog channel strip:
- Solo / Mute Matrix: Isolate or mute any frequency band to audit saturation harmonics, resonance build-up, or stereo balance.
- 9 Saturation Flavors: Select per-band between Tube, Tape, Foldback, Hard Clip, Wavefolder, Chebyshev, Triode (Child-Langmuir ODE), Transformer (Jiles-Atherton), and 12AX7 Preamp.
- Saturation Drive & Bias: Dial in harmonic warmth with variable DC bias (even-order asymmetry).
- Pre/Post Filters & Dynamics: Pre-emphasis tilt, post-EQ trim, 6 dB soft-knee compressor with auto-timing, and 10:1 downward expander gate.
- Mid/Side Stereo Balance: Independent width control per band for wide top-end air and focused center bass.
Band 0 (SUB): Transformer saturation, sub dynamic drive, and punch preservation.
Band 6 (AIR): High-shelf tape sheen, M/S stereo expansion, and transient sibilance taming.
✨ 15-Knob Analog Glue & Tone Bus
Analog Glue & Tone Bus: 15 musical macros for high-level tone sculpting, dynamic glue, tube sag, and harmonic bias.
Low End & Warmth
Sub Weight: Deep sub resonance (< 60 Hz).
Bass Punch: Low-band dynamic transient punch (60–250 Hz).
Warmth: Even-order tube harmonics (250–500 Hz).
Mud Removal: Dynamic boxiness scoop (250–400 Hz).
Presence & Highs
Vocal Presence: Vocal/lead intelligibility (1.5–4.5 kHz).
Clarity: High-mid transient definition.
Air: Smooth high-shelf sheen (> 10 kHz).
Harmonic Bias: Blends odd tape grit (-100%) vs even tube warmth (+100%).
Dynamics & Glue
Density: Cross-band bus glue compression.
Punch Preserve: Transient envelope protection.
Smoothness: High-mid harshness taming (2.5–7 kHz).
Adaptive Balance: Real-time RMS target curve tracking.
Character & Output
Sag: Vacuum tube power supply rail voltage sag simulation.
Tape Hiss: Subtle stochastic analog noise floor.
Bus Toggle & Reset: Master ON toggle and one-click reset for the entire macro suite.
🛡 Master Gain, True Peak Limiter & Critical Auditioning
Master & Limiter Dock: Global I/O Trim, Auto-Gain, Maximizer, and True Peak lookahead limiter.
The right-hand dock delivers comprehensive finalization and mastering precision:
- Auto-Gain (⚖): Continuously matches bypass level to processed wet RMS volume, eliminating loudness bias.
- Hold Raw (🎧): Momentary audition button: hold down to hear the raw input signal level-matched to current output.
- Delta Mode (Δ): Solos the difference signal (Δ = Output - Input) to hear only newly generated harmonics.
- Sub Mono: Collapses all stereo content below 90 Hz into pure mono for phase-coherent club and vinyl playback.
- 4x True Peak Limiter: Lookahead inter-sample peak limiter with adjustable ceiling (-6.0 to 0.0 dBFS) and auto-release.
- EBU R128 LUFS History: 3-minute scrolling graph displaying Integrated, Short-term, and Momentary loudness with 1-click
🎯 Matchnormalization.
6. Deep Dive: The 9 Saturation Flavors
Each saturation flavor in Multi Harmonic Sweetener is implemented using SIMD-vectorized math with dedicated state tracking:
| Flavor | Circuit / Mathematical Model | Equation / State | Primary Sonic Character |
|---|---|---|---|
| 1. Tube | Asymmetric Tanh + Supply Sag | f(x) = tanh(x + bias_sag) - bias_out | Warm, musical, dynamic compression with rail voltage drops on heavy transients. |
| 2. Tape | Cubic Polynomial Saturation | f(x) = x - x³/4.32 for |x| ≤ 1.2 | Softly rounds off sharp transients with 3rd-order harmonic glue and head bump. |
| 3. Foldback | Sinusoidal Phase Foldback | f(x) = sin(π/2 · (x + bias)) | Vibrant odd harmonics and bright edge that cut cleanly through dense mixes. |
| 4. Hard Clip | Solid-State Hard Limit | f(x) = clamp(x, -1.0, +1.0) | Maximum transient punch and high-frequency presence for modern electronic drums. |
| 5. Wavefolder | Recursive West-Coast Folding | Recursive sine folding | Complex overtone synthesis, transforming simple basses into rich reese textures. |
| 6. Chebyshev | 2nd & 3rd Order Polynomials | T₂(x) = 2x² - 1, T₃(x) = 4x³ - 3x | Surgical excitation of isolated octave (2nd) or twelfth (3rd) harmonics. |
| 7. Triode Circuit | Physical Child-Langmuir ODE | Ip = k · (Vgk + Vp/μ)^1.5 | True vacuum tube warmth with dynamic Miller capacitance (15 kHz) and load-line sag. |
| 8. Transformer | Jiles-Atherton Hysteresis | B-H magnetic domain loop (dH/dt) | Sub-bass weight, low-frequency phase shift, and magnetic cohesion. |
| 9. 12AX7 Preamp | Dual-Stage High-Gain Tube | Rk = 1.5 kΩ Cathode RC dynamics | Rich harmonic density, creamy midrange saturation, and smooth top-end compression. |
7. Dynamics, Punch Preserve & Adaptive Balance
🎯 Soft-Knee Compressor & Gate
Each band includes a 6 dB soft-knee compressor (1:1 to 20:1) with true peak envelope detection, alongside a 10:1 downward expander gate for silence conditioning.
🥊 Transient Punch Preserve
Dual-envelope transient detector (Env_fast 0.5ms / Env_slow 5.0ms) temporarily backs off gain reduction and saturation on sharp drum attacks, preserving snappy impact.
⚖️ Real-Time Adaptive Balance
DSP monitors RMS energy across all 7 bands and compares them against target genre envelopes, applying gentle trim coefficients when deviations exceed ±1.5 dB.
8. Master Assistant Diagnostic Report & Reference Matching
Clicking 📊 Diagnostic Report in the top toolbar opens the comprehensive Master Assistant Report. This tool audits your mix across three critical domains:
Master Assistant Diagnostic Report: Comprehensive audit of Analysis Metrics, 7-Band Frequency Balance, and Stereo & Phase Integrity with 1-click corrective fixes.
1. Analysis Metrics & Loudness
- Estimated Loudness (LUFS-I): Integrated program loudness calculation.
- Streaming Standard Compliance: Flags safe Spotify/Apple Music compliance (-14 LUFS) or commercial pop/club loudness (-12 to -8 LUFS).
- Peak-to-Loudness Ratio (PLR): Dynamic crest factor monitoring. Warns if over-compressed (< 6 dB) or wildly dynamic (> 14 dB).
- Limiter & Tamer Health: Real-time True Peak gain reduction and harshness tamer activity.
2. 7-Band Frequency Balance
- Tonal Balance Match Score (%): Percentage compliance against target genre curve.
- Per-Band Energy Ratios: Current vs target energy across Sub, Low, Low-Mid, Mid, Hi-Mid, Pres, and Air.
- Auto-Adjustment Badges: Displays automated boost/cut recommendations (e.g.
✔ Boost +3.3 dB). - Upper-Mid Harshness Detector: Flags sharp 2-6 kHz peaks with a 1-click
[Apply Fix]button.
3. Stereo & Phase Integrity
- L/R Balance (Skew): Checks left/right RMS balance to confirm center imaging.
- Stereo Width (%): Side-to-Mid energy ratio indicating spatial spread.
- Phase Correlation: Validates mono compatibility (-1.0 to +1.0).
- Sub-Bass Mono Health: Flags stereo leakage in sub-bass (> 10%) with a 1-click
[Enable Sub-Bass Mono]button.
9. Pro Sound Design & Mastering Recipes
Audition these calibrated production setups across different genres:
Recipe 1: Modern EDM / Club Master
-8.5 LUFS • Linear Phase (HQ) • Sub Mono: ONThundering low-end weight, aggressive kick punch, and sparkling high-shelf air tuned for maximum club sound system impact.
Recipe 2: Warm Vintage Analog Rock Bus
-12.0 LUFS • IIR (Low Latency) • Sub Mono: OFF / StereoRich 2nd-order tube harmonics, transformer magnetic cohesion, and subtle power supply sag breathing on drum hits.
Recipe 3: Crisp Pop / Vocal Air Master
-14.0 LUFS (Streaming Standard) • Linear Phase (HQ) • Sub Mono: ONPolished radio-ready sheen: pulls lead vocals forward in the center image while opening wide harmonic sheen across the side channels.
Recipe 4: Vinyl Pre-Mastering Clean
-16.0 LUFS • Linear Phase (HQ) • Sub Mono: ON (Essential for stylus tracking)Eliminates low-end phase cancellations and tames aggressive high-frequency sibilance to ensure safe, distortion-free vinyl lathe cutting.
10. Gold Standard Reference Profiles
Multi Harmonic Sweetener includes built-in spectral curves modeled after world-class commercial masters:
| Preset Profile | Reference Artist | Reference Song | Style |
|---|---|---|---|
| Measured Warm Master | Steely Dan | "Aja" | Mastering Reference |
| Measured EDM Master | Skrillex | "Rumble" | Mastering Reference |
| Vintage Analog Master | Pink Floyd | "The Dark Side of the Moon" | Mastering Reference |
| Tape Master | Marvin Gaye | "What's Going On" | Mastering Reference |
| Tight & Punchy | Foo Fighters | "The Pretender" | Mastering Reference |
| EDM Festival Master | Martin Garrix | "Animals" | Mastering Reference |
| Hip-Hop Thump | Dr. Dre | "Still D.R.E." | Mastering Reference |
| Lo-Fi Master | J Dilla | "Donuts" | Mastering Reference |
| Pop Master | Dua Lipa | "Don't Start Now" | Mastering Reference |
| Jazz Master | Miles Davis | "Kind of Blue" | Mastering Reference |
| Classical Master | Hans Zimmer | "Time" | Mastering Reference |
| Metal Master | Metallica | "Enter Sandman" | Mastering Reference |
| Punk Master | Green Day | "American Idiot" | Mastering Reference |
| House Master | Chris Lake | "Turn off the Lights" | Mastering Reference |
| Techno Master | Adam Beyer & Bart Skils | "Your Mind" | Mastering Reference |
| DnB Master | Pendulum | "Watercolour" | Mastering Reference |
| Electronic Master | Daft Punk | "Random Access Memories" | Mastering Reference |
| Ambient Master | Brian Eno | "Apollo" | Mastering Reference |
| Cinematic Master | Junkie XL | "Mad Max: Fury Road" | Mastering Reference |
| Acoustic Master | Ed Sheeran | "Shape of You (Acoustic)" | Mastering Reference |
11. Frequently Asked Questions & Shortcuts
Q: Should I use Linear Phase or IIR Crossover mode?
Use IIR Mode for low-latency live tracking or busy arrangements. Its 15 all-pass compensators eliminate band-boundary phase dips. Use Linear Phase Mode for final master bus export where absolute frequency separation and zero phase distortion are paramount.
Q: Why is CPU usage higher with 16x Oversampling and HQ enabled?
At 16x with a 48 kHz project, internal DSP executes at 768 kHz with 63-tap linear-phase FIR halfband filters. For mixing, 4x or 8x with HQ OFF offers pristine sound with negligible CPU overhead. Reserve 16x with HQ ON for final export.
Q: How does Matched Bypass work?
Matched Bypass tracks the RMS loudness of both incoming and processed audio. When you bypass the plugin, it levels the volume of the clean signal so your ears evaluate true tonal coloration, glue, and harmonic texture rather than volume bias.
Q: Can I load reference songs directly into the plugin?
Yes. In the Top Control Bar under PROFILE, choose Reference Track as your Target Genre, then click Load Reference Audio File.... The built-in Symphonia decoder analyzes any WAV, FLAC, MP3, AIFF, OGG, or AAC file to construct a custom target curve.
12. Complete Parameter Reference Table
Search and filter all 58 Harmonic Sweetener parameters below:
| ID | Name | Module | Type | Default | Range / Values | Unit | Description |
|---|---|---|---|---|---|---|---|
mode | Processing Mode | Global | Enum | MidSide | Stereo / MidSide | — | Stereo or Mid/Side sum-and-difference processing. |
auto_gain | Matched Bypass | Global | Toggle | Off | Off / On | — | RMS-compensated A/B listening bypass to prevent loudness bias. |
sub_mono | Sub-Bass Mono | Global | Toggle | On | Off / On | — | Collapses stereo energy below 90 Hz into mono for vinyl and club PA safety. |
bypass_eq | Bypass EQ | Global | Toggle | Off | Off / On | — | Bypasses all per-band post-saturation gains. |
bypass_master_assistant | Bypass Assistant | Profile | Toggle | Off | Off / On | — | Disables Master Assistant automated processing. |
target_genre | Target Genre | Profile | Dropdown | Default | 22 Genres | — | Tonal balance target envelope calibrated for specific musical styles. |
target_lufs | Target LUFS | Profile | Slider | -14.0 | -24.0 to -4.0 | LUFS | Master loudness normalization target. |
global_in | Global Input Gain | Signal Flow | Knob | 0.0 | -24.0 to +12.0 | dB | Pre-processing input gain trimming. |
global_out | Global Output Gain | Signal Flow | Knob | 0.0 | -24.0 to +12.0 | dB | Master output volume trim. |
global_mix | Global Dry/Wet Mix | Signal Flow | Knob | 100.0 | 0.0 to 100.0 | % | Parallel processing wet/dry blend. |
unlink | Stereo Unlink | Signal Flow | Knob | 0.0 | 0.0 to 100.0 | % | Decouples L/R dynamics and saturation detectors for wide imaging. |
delta_mode | Delta Mode | Signal Flow | Toggle | Off | Off / On | — | Auditions difference between output and input to isolate harmonic generation. |
oversampling_rate | Oversampling Rate | Global | Enum | 16x | 2x / 4x / 8x / 16x | — | Polyphase anti-aliasing oversampling factor. |
oversampling_hq | Oversampling HQ | Global | Toggle | On | Off / On | — | Engages 63-tap linear-phase FIR halfband reconstruction filtering. |
crossover_type | Crossover Type | Crossovers | Enum | Linear Phase | IIR / Linear Phase | — | Choose between 4th-order Linkwitz-Riley LR4 or 2048-tap FIR convolution. |
limiter_enable | True Peak Limiter | Limiter | Toggle | On | Off / On | — | Engages 4x oversampled lookahead inter-sample peak (ISP) limiter. |
limiter_ceiling | TP Ceiling | Limiter | Knob | -0.3 | -6.0 to 0.0 | dBFS | True peak maximum output limit. |
limiter_release | TP Release | Limiter | Knob | 150 | 10 to 500 | ms | Limiter program-dependent base recovery time. |
split_1 | Split 1 (SUB / LOW) | Crossovers | Slider | 60.0 | 20.0 to 200.0 | Hz | Crossover boundary between SUB and LOW bands. |
split_2 | Split 2 (LOW / LOMID) | Crossovers | Slider | 250.0 | 100.0 to 500.0 | Hz | Crossover boundary between LOW and LOMID bands. |
split_3 | Split 3 (LOMID / MID) | Crossovers | Slider | 500.0 | 300.0 to 1000.0 | Hz | Crossover boundary between LOMID and MID bands. |
split_4 | Split 4 (MID / HIMID) | Crossovers | Slider | 1500.0 | 1000.0 to 3000.0 | Hz | Crossover boundary between MID and HIMID bands. |
split_5 | Split 5 (HIMID / PRES) | Crossovers | Slider | 4500.0 | 2000.0 to 8000.0 | Hz | Crossover boundary between HIMID and PRES bands. |
split_6 | Split 6 (PRES / AIR) | Crossovers | Slider | 10000.0 | 6000.0 to 16000.0 | Hz | Crossover boundary between PRES and AIR bands. |
m_sub_weight | Sub Weight | Macros | Macro Knob | 0.0 | -100.0 to +100.0 | % | Adds chest-thumping sub-bass resonance and harmonic reinforcement (< 60 Hz). |
m_bass_punch | Bass Punch | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Enhances transient punch of kicks and bass in the 60-250 Hz range. |
m_warmth | Warmth | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Injects even-order triode and transformer harmonics into the low-mids (250-500 Hz). |
m_mud_removal | Mud Removal | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Dynamically cleans out boxiness and clutter between 300 Hz and 600 Hz. |
m_presence | Vocal Presence | Macros | Macro Knob | 0.0 | -100.0 to +100.0 | % | Pushes vocal intelligibility and mid clarity (1.5-4.5 kHz) via odd harmonics. |
m_clarity | Clarity | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Sharpens upper-mid transient separation and reduces acoustic masking. |
m_air | Air | Macros | Macro Knob | 0.0 | -100.0 to +100.0 | % | Gentle high-shelf tape sheen and sparkle above 10 kHz. |
m_stereo_width | Stereo Width | Macros | Macro Knob | 0.0 | -100.0 to +100.0 | % | Expands M/S high-frequency width while maintaining anchored low-end center. |
m_density | Density (Glue) | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Cross-band soft-knee compression and tape saturation knitting the mix together. |
m_loudness | Loudness Maximizer | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Drives gain into True Peak limiter with program-dependent auto release. |
m_smooth | Smoothness | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Dynamic resonance suppressor targeting harsh sibilance and cymbal splash (2.5-7 kHz). |
m_transient_preserve | Punch Preserve | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Transient envelope follower temporarily ducking saturation on drum strikes. |
m_adaptive_balance | Adaptive Balance | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Real-time 7-band RMS leveling keeping tonal balance locked to target curve. |
m_harmonic_bias | Harmonic Bias | Macros | Macro Knob | 0.0 | -100.0 to +100.0 | % | Continuous blend from pure odd harmonics (-100%) to rich even harmonics (+100%). |
m_analog_sag | Pumping / Sag | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Emulates tube power supply rail voltage sag during heavy bass transients. |
m_tape_hiss | Tape Hiss | Macros | Macro Knob | 0.0 | 0.0 to 100.0 | % | Stochastic analog tape noise floor for vintage character and subtle dither. |
band.mute | Band Mute (Bands 0..6) | Per-Band | Toggle | Off | Off / On | — | Silences the selected frequency band. |
band.solo | Band Solo (Bands 0..6) | Per-Band | Toggle | Off | Off / On | — | Solos the selected frequency band. |
band.delta | Band Delta (Bands 0..6) | Per-Band | Toggle | Off | Off / On | — | Auditions only non-linear harmonics and gain reduction for this band. |
band.flavor | Saturation Flavor | Per-Band | Dropdown | Tube | 9 Flavors | — | Selects 1 of 9 analog/physical saturation transfer curves. |
band.drive | Band Drive | Per-Band | Knob | 0.0 | 0.0 to 48.0 | dB | Input drive driving into saturation transfer function. |
band.asym | Asymmetry | Per-Band | Knob | 0.0 | 0.0 to 1.0 | % | DC bias point shift producing 2nd-order even harmonics. |
band.blend | Saturation Blend | Per-Band | Knob | 0.0 | 0.0 to 100.0 | % | Wet/dry blend of saturation engine for parallel excitation. |
band.gain | Band Gain | Per-Band | Knob | 0.0 | -24.0 to +12.0 | dB | Post-saturation output gain trimming for tonal balance. |
band.dyn_drive | Dynamic Drive | Per-Band | Knob | 0.0 | -100.0 to +100.0 | % | Modulates drive amount with incoming envelope for punch or sustain. |
band.ms_balance | M/S Balance | Per-Band | Knob | 0.0 | -100.0 to +100.0 | % | Pushes energy into Mid channel (-100%) or Side channel (+100%). |
band.pre_emph | Pre-Emphasis | Per-Band | Knob | 0.0 | 0.0 to 100.0 | % | High-frequency pre-saturation tilt filter with post-deemphasis. |
band.comp_enable | Comp Enable | Per-Band Dynamics | Toggle | Off | Off / On | — | Enables soft-knee dynamics compressor on this band. |
band.comp_thresh | Comp Threshold | Per-Band Dynamics | Knob | 0.0 | -60.0 to 0.0 | dB | Compression detection threshold. |
band.comp_ratio | Comp Ratio | Per-Band Dynamics | Knob | 1.0 | 1.0 to 20.0 | :1 | Soft-knee compression ratio slope. |
band.comp_attack | Comp Attack | Per-Band Dynamics | Knob | 10.0 | 0.1 to 100.0 | ms | Compressor attack time. |
band.comp_release | Comp Release | Per-Band Dynamics | Knob | 100.0 | 10.0 to 1000.0 | ms | Compressor release time. |
band.gate_thresh | Gate Threshold | Per-Band Dynamics | Knob | -90.0 | -90.0 to 0.0 | dB | 10:1 downward expander noise gate threshold. |