The Canary

About the The Canary

Every engineer knows the disappointment: a kit that hit like a truck in the room, tracked to a close mic, and suddenly it sounds like someone drumming on a cardboard box. The Canary is a free drum transient and sustain shaper we built to put that lost life back. It doesn't just squash or gate — it synthesises the attack and sustain your recording never captured, then blends it back in. You get punch where the transient went missing and body where the shell rings out, on tap.

Why we built a drum shaper that adds instead of subtracts

Most dynamics tools work by taking things away — a transient designer clamps down, a gate chops the tail. The Canary goes the other direction. It analyses the input with a differential envelope detector and generates new attack and sustain components that are triggered by your own drum hits, so they follow the performance instead of fighting it. That means you can recover tone, attack and sustain that "may have been lost during the recording process, or which haven't been there in the first place," as the manual puts it. And because it runs with zero latency, there's no delay compensation to think about — handy when you're monitoring while tracking.

Punch, crack and weight: the four controls that do the work

The Attack knob sets how much of the synthesised attack gets added. On a dull, close-mic'd snare or a tom that won't cut, this is the go-to move — it puts the crack and impact back so the drum steps through a dense mix. Depending on the Filter you pick, it reads as either more punch or a crisper top-end snap. The Sustain knob adds a synthetic sustain phase, and its Tune control lets you pitch that sustain to sit in the key of your song. The Filter itself steps through four voicings matched to different shell types — Low Pass, Band Pass, High Pass and Scoop — so the added components land where each drum needs them.

Using the Canary on kicks, snares, toms and loops

On a thin, gutless bass drum, the manual's own recipe is hard to beat: dial in a lower Tune, set the Filter to Low Pass, bring up Sustain, and blend to taste — instant weight and thump. On snares and toms, lean on Attack with a Band Pass or High Pass voicing to restore the crack. On drum loops and sampled kits, use it as an effect to reshape a stale one-shot into something with front and body. The Mix knob blends dry against processed — start near three o'clock, then pull it back to whatever fits the track. Because it costs nothing, the Canary pairs naturally with our other free tool, the guitar-amp head Cypress TT-15, if you're assembling a no-budget starter chain.

The Canary Features

Synthetic attack processor

The attack processor brings out the input signal's attack phase using a differential envelope detector, adding punch or crisp snap depending on the chosen filter. It's the go-to move on dull, close-mic'd snares and toms that won't cut through a mix. Right-click the knob to switch it off entirely.

Tunable sustain processor

The sustain processor generates a synthetic sustain phase triggered by your drum hits. The Tune control pitches that sustain so it sits in the key of your song — dial a lower tune on a thin kick for extra weight, or add just a hint of tone elsewhere.

Four shell-matched filters

The Filter knob steps through four carefully tuned voicings — Low Pass, Band Pass, High Pass and Scoop — each matched to a different drum-shell type. Right-click to bypass filtering. The filter shapes where the synthesised attack and sustain land in the spectrum.

Dry/wet mix blend

The Mix knob blends the dry input against the processed signal. Start around three o'clock while dialling the other controls, then pull it back to taste. Right-click to bypass the dry signal and audition the processed component on its own.

Zero latency

The Canary introduces no additional delay to your signal, so there's no delay compensation to manage — ideal when monitoring drums while tracking or working in a low-latency session.

SSE2-optimised code

DSP operations are pipelined on the SSE2 instruction set for high-performance operation, even under complex processing.

HighDPI / Retina support

Crisp, high-pixel-density rendering on macOS and Windows for a sharp interface on modern displays.

The Canary Examples & Videos