Devious Machines Duck 2 2.0.30 Mac

Trace envelope from imported audio file is one of those features that, once you use it, changes how you think about a mix. Duck 2 is a sidechaining and volume-shaping plugin from Devious Machines, built as a direct, drop-in upgrade from the original.

Improved audio triggering meets customizable envelope curves

• Standard kick-to-bass ducking on a track insert, using the improved audio triggering with its threshold meter and trigger LED.
• Creative volume shaping on buses, where the envelope editor's advanced curve shapes can draw custom fades, punches, or tremolo patterns.
• Frequency-selective sidechaining on a vocal bus. The multiband section splits the signal into three bands, each with an optional separate envelope and linear phase filtering.
• MIDI-triggered dynamics, where velocity controls ducking depth or volume directly from a controller or sequencer.

Offset demands precision, output lacks a safety limiter

• The offset function operates in both milliseconds and samples modes, which requires careful adjustment when aligning to a sidechain source.
• The output section includes gain reduction metering, but no additional limiting or clipping, so heavy shaping may need a follow-up processor.

A resizable GUI and other early 2.0 workflow shifts

The move from Duck 1 brought a few workflow shifts that took a couple of sessions to settle in. The freely resizable GUI landed early in the 2.0 cycle — drag a corner and the envelope editor expands with it, which makes drawing precise curve points on a laptop screen far less fiddly. Switching between two-band and three-band mode is a dropdown click, and the crossover slope can be set to 12, 24, or 48 dB per octave per band split. That matters when you want a gentler blend between bands for a bass group, or a steeper cut to isolate a hi-hat sizzle without bleed.

The trace envelope function also arrived in these updates. Feed it a hi-hat loop or a drum room recording, and Duck 2 maps the amplitude contour into an editable envelope. The randomize button on the envelope editor is useful as a starting point for rhythmic gating patterns — hit it a few times, then tweak the generated points into something useable.

Where newer users tend to stumble

A common early mistake is leaving the offset at zero and wondering why the ducking feels late. The offset function combines lookahead and timing shift into one control, switchable between milliseconds and samples. If the sidechain source is a kick with a slow attack transient, nudging the offset forward by 5–10 ms in samples mode tightens the pocket noticeably. Another misstep is assigning separate envelopes to all three bands and drawing wildly different curves without soloing each band to check phase interaction — linear phase filtering avoids smearing, but extreme shape mismatches between adjacent bands can still sound disconnected. Finally, users coming from simpler sidechain tools sometimes overlook the MIDI velocity routing: setting velocity to control ducking depth instead of overall volume can yield more natural dynamics when triggering from a pad controller, and it is worth testing both assignments early in a project.

Version 2.0.30 brings a freely resizable GUI. A multiband section with three bands and separate envelopes is now available, and the plugin can trace an envelope from an imported audio file or sidechain input.

• macOS 11 or later
• 64-bit host
• Intel and Apple Silicon support
• Interface language: English