Audubon ยท Plugins
MLD-001  ยท  Released v1.2
Mallard envelope canvas
NEW ยท VST3 PLUGIN EST. 2026 ยท AUDUBON AUDIO
Sidechain Shaper

Mallard.
Draw the duck.

Draw any envelope shape directly on the canvas. Sync it to your BPM. Let it repeat every bar. Mallard turns your sidechain from a reflex into a design decision.

One-time ยท v1.2.0
$19
Free, full plugin. The output dips to silence every 30 seconds until you enter a serial โ€” buying removes it, no reinstall needed.
Format
VST3 Win 64 ยท macOS Universal
Duration
50msโ€“10s + BPM sync
Sync Divs
7 1/16 โ†’ 2 bars
UI Size
Resizable 500 โ†’ 1200px
License
Royalty-free commercial OK
01 โ€” Overview

Sidechain compression you design yourself.

Mallard replaces the compressor-and-kick-sidechain workflow with a direct approach: draw the exact gain reduction curve you want on a canvas, sync it to your project BPM, and let it loop. No detector, no threshold โ€” just the shape you drew.

VST3 Drawable Envelope BPM Sync 7 Sync Divisions Resizable UI

Traditional sidechain compression reacts to an audio signal โ€” Mallard executes a predetermined shape. You decide what the ducking looks like before the music plays, with unlimited points and full control over every curve.

This makes Mallard ideal for anything where the duck shape matters as much as the timing โ€” stutters, rhythmic gates, pumping synths in time with complex polyrhythms, or any case where a compressor's attack and release curves aren't expressive enough.

Mallard full plugin interface
Plugin ยท full interface
02 โ€” The Engine

A canvas for gain. Paint with volume.

The envelope canvas is the entire plugin. Click to place points, drag to reshape the curve between them. Every point and curve segment updates the gain reduction output in real time as you draw.

Mallard envelope drawing canvas
โœŽ
Draw Any Shape

Place points anywhere on the canvas. Drag the curve segment between two points to control the interpolation โ€” linear, concave, or convex. Unlimited points means you can construct any gain reduction shape, from a simple one-dip duck to multi-stage rhythmic patterns.

โ™ฉ
BPM Sync

The envelope's total duration can be locked to a musical division of the host BPM. As you change tempo in your DAW or use tempo automation, Mallard follows. The shape stays proportionally identical regardless of speed.

โ†บ
Loop Mode

The envelope repeats continuously on the sync division you choose. On 1 bar: the shape loops every bar. On 1/4: it repeats every beat. The loop point is seamless โ€” the last point and the first point are always connected.

โคก
Resizable Canvas

Drag the corner of the plugin window to resize it from 500ร—280 to 1200ร—700 pixels. The canvas scales with the window โ€” more screen space means more precise point placement and a clearer view of your envelope shape.

03 โ€” Envelope Design

Every curve, exactly where you want it.

Mallard showing a complex custom drawn envelope
A โ€” Points
Unlimited Envelope Points

There's no cap on how many points you can place. A simple duck needs two or three. A complex multi-stage stutter might use twenty. The canvas handles any number of points without performance impact.

B โ€” Curves
Adjustable Segment Curvature

Between any two adjacent points, drag the midpoint of the segment up or down to bend the interpolation from linear into a curve. Concave curves feel natural for release; convex curves create abrupt attack-style shapes.

C โ€” Editing
Right-Click to Remove

Right-click any existing point to remove it. The envelope reconnects automatically between the surrounding points. No undo needed โ€” reshaping is fast enough that you can iterate freely without worrying about your edit history.

04 โ€” BPM Sync

Seven divisions. One tempo.

Mallard sync division selector and control knobs
A โ€” Divisions
1/16, 1/8, 1/4, 1/2, 1 Bar, 3/2, 2 Bars

Seven musical divisions cover everything from 16th-note gating to two-bar breathing shapes. Pick the division that matches your pattern's musical context โ€” Mallard calculates the exact duration in milliseconds from the host tempo.

B โ€” Free Mode
50 ms โ†’ 10 s Manual Duration

Disable sync and set a precise duration manually โ€” from 50 ms for ultra-fast gating effects up to 10 seconds for long, evolving volume shapes. Free mode ignores the host tempo entirely.

C โ€” Tempo Automation
Follows Host Tempo in Real Time

If your project uses tempo automation, Mallard follows it. A shape that takes exactly one bar at 120 BPM will still take exactly one bar at 140 BPM โ€” the loop stretches and compresses with the tempo map.

05 โ€” Resizable UI

More screen. More precision.

The plugin window is freely resizable from 500ร—280 pixels up to 1200ร—700. The envelope canvas scales with every resize โ€” more pixels means more precise point placement, especially when working on dense envelopes with many points close together.

Mallard at large window size showing detailed envelope
Min Size
500 ร— 280 px

Compact enough to sit alongside other plugins in a crowded DAW UI. Still fully usable for simple one or two-point envelopes.

Max Size
1200 ร— 700 px

Full-screen precision for complex envelopes. At maximum size, individual points are easily distinguishable and segment curves are clearly visible.

Canvas Scaling
Proportional

The canvas always fills the plugin window. Envelope point positions are stored as normalized coordinates โ€” resizing never moves your points or changes the shape.

06 โ€” Controls

Everything that shapes the shape.

Beyond the canvas itself, Mallard has a focused set of controls for timing, depth, and mix โ€” enough to tune the effect without adding complexity.

Sync
7 divisions / Free

Toggle between BPM-synced mode (choose 1/16 through 2 bars) and free mode. In free mode the Duration knob is active. In sync mode the duration is calculated automatically from the host BPM.

Duration
50 ms โ€“ 10 s

Active only in free mode. Sets the total time from the start of the envelope to its loop point. The entire shape is stretched or compressed to fit this duration.

Depth
0 โ€“ 100%

Scales the entire envelope's gain reduction range. At 100% the canvas's lowest point reaches maximum reduction. At 50% the same shape produces half the depth โ€” useful for blending the effect into a mix.

Mix
0 โ€“ 100%

Dry/wet blend. At 100% the full envelope is applied. Pull back for a subtler effect without changing the drawn shape โ€” ideal for A/B comparison while building the envelope.

Phase Offset
0 โ€“ 100%

Shifts the loop start point relative to the host's beat grid. 50% means the envelope starts halfway through the sync division. Useful for offsetting Mallard against other synced elements in your arrangement.

07 โ€” Workflow

Draw once. Loop forever.

Mallard inserted on a track Mallard plugin with a complete envelope drawn
01
Insert Mallard on the track you want to duck โ€” bass, synth pad, full mix bus, or any channel that needs a rhythmic volume shape.
02
Set the sync division. Start with 1 Bar for a standard four-on-the-floor feel. Use 1/4 for beat-locked gating. Use 2 Bars for slower, breathing shapes.
03
Click on the canvas to place the first dip point. Drag it down to where you want the deepest reduction. Add a second point to bring the volume back up.
04
Drag the segment between points to curve it. Convex curves feel like a gate snapping open; concave curves feel like a natural compressor release.
05
Adjust Depth to scale how hard the duck hits. Use Mix to blend it in until it sits right in the track โ€” you can always increase later.
06
Use Phase Offset to align the duck's lowest point against the kick transient in your arrangement without touching your clip grid.
08 โ€” Specifications

Everything, on one page.

Format
VST3
Platform
Windows 10 / 11 ยท macOS 10.13+ (Universal โ€” Apple Silicon & Intel) ยท 64-bit
Version
1.2.0
Envelope points
Unlimited
Segment interpolation
Linear or adjustable curve (convex / concave) per segment
Duration (free mode)
50 ms โ†’ 10 s
BPM sync divisions
1/16, 1/8, 1/4, 1/2, 1 Bar, 3/2, 2 Bars
Depth range
0 โ€“ 100%
Mix range
0 โ€“ 100% dry/wet
Phase offset
0 โ€“ 100% of loop length
UI size (min)
500 ร— 280 px
UI size (max)
1200 ร— 700 px
Tempo automation
Follows host tempo map in real time when sync is enabled
Parameter smoothing
Ramp filter on Depth and Mix โ€” click-free automation
State save
Full envelope and settings saved with DAW project as XML
09 โ€” Fine Print

Documentation.

DAW
Any VST3-compatible host โ€” Ableton Live 11+, FL Studio 20+, Reaper, Cubase, Studio One, Bitwig. BPM sync requires the host to export tempo information (all major DAWs do this by default). VST3 only โ€” Logic Pro and GarageBand load Audio Units, not VST3, so they are not supported.
Operating System
Windows 10 or 11 (64-bit) โ€” the editor uses WebView2, which is built into Windows 11 and most current Windows 10 installs. macOS 10.13 High Sierra or later โ€” one Universal build runs natively on both Apple Silicon and Intel Macs.
Format
VST3 only. Works on mono and stereo channels โ€” any track where rhythmic gain shaping is useful.
CPU
Very light. Mallard applies a gain envelope โ€” there's no oversampling, no convolution, no FFT. CPU usage is minimal even at high point counts.
Updates
Current release 1.2.0. Free updates for all future 1.x releases.
v1.2.0 โ€” Update check, from the logo
The Audubon Audio wordmark in Mallard’s header is now a button. Click it and Mallard asks audubonaudio.com one question — which build is current — then shows that number beside the one you are running, with a link straight to the members area if there is something newer and a plain “you have the current version” if there is not. If it cannot reach us it says so rather than claiming you are up to date. This is the only moment Mallard touches the internet, it happens only on that click, and nothing about you goes with it — no serial, no licence, no machine id, not even your version or operating system. The comparison happens on your own machine.
v1.0.0 โ€” Initial Release
First public release. Sidechain-driven volume shaping with attack, release, threshold, ratio, and depth controls. Real-time gain reduction display, BPM sync for attack/release times, and a lookahead mode for transient-perfect ducking.
Full User Guide
Step-by-step walkthrough of the envelope display, all mode combinations (Loop, One-shot, Retrigger, Sync), audio and MIDI sidechain routing for major DAWs, and common use cases for rhythmic gating and sidechain ducking.
Open User Guide โ†’
Personal & Commercial Use
Use Mallard in any project โ€” music production, mixing, sound design, post-production, broadcast, and live performance. No royalties, no project restrictions.
Single User
One license per user. Install on the computers you personally own or operate.
Serial Activation
Your license includes a unique serial number tied to your email. Your serial and download are permanently accessible in your Members Area.
Free Updates
All 1.x updates are free. Your serial activates the current version and all future updates in the 1.x line.
No Redistribution
The plugin binaries may not be shared, resold, or redistributed. Each user must obtain their own license.
M
Mallard Sidechain Shaper ยท VST3
$19