Line it up
Sub-sample Delay pulls a channel earlier or pushes it later. Kick and bass, snare top and bottom, DI and amp, lined up below a single sample. No zipper noise on the move.
ALIGN
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Line it up
ALIGN
Time & Phase Alignment Plugin
Align is a precision time-and-phase alignment tool. It lines up two signals that fight in time or phase (kick and bass, snare top and bottom, DI and amp, multi-mic drums, M/S mastering timing) with sub-sample delay, broadband phase rotation, a tunable allpass, and per-channel filtering. Align your signals, or use the same controls for creative work.
Latestv0.9.2.0·29 Jun 2026·What's new ›·Manual ›
Sub-sample delayA polyphase sinc fractional delay shifts a channel by a fraction of a sample. Coarse ±30 ms, Fine ±100 µs. Read out in ms, samples, or metres and feet.
Broadband phaseRotation runs −180° to +180° through a linear-phase FIR Hilbert and a matched dry path. Magnitude flat at every frequency. Phase, not tone.
Live phase curveThe combined phase of Broadband, Allpass, and Filter draws full width in real time. Two curves when unlinked, red and gold (Left and Right, or Mid and Side) with a magnitude overlay in dB.
Phase, not tone
Broadband Rotation and the Allpass move phase only. Magnitude stays flat at every frequency, so two sources align without recolouring either one.
Fix, or create
The same per-channel Delay, Rotation, Allpass, and Filter that repair alignment also build Haas width, decorrelate the Side, and shape the stereo image.
Overview
Fix what DeltaScope finds
Align is the corrective half of the workflow. DeltaScope shows two signals drifting apart in time or phase; Align slides them back together, sub-sample Delay, broadband phase Rotation, a single tunable Allpass, per-channel polarity, and 2-pole filtering, all set against a live phase curve that draws the combined Broadband, Allpass, and Filter response. DeltaScope shows the problem; Align fixes it. The same controls do creative work. Per-channel sub-sample Delay sets a Haas spread. Side-only Rotation and Side Mix past neutral widen the image. The Allpass adds depth around one band. Per-side Filter shapes tone and width. Fixing leads, but every move runs either way. Work in Stereo or Mid-Side, link the sections to move together or unlink for independent control per channel, and finish in the output stage. Magnitude untouched throughout. Nulls bit-exact at neutral.
- Sub-sample Delay: Coarse ±30 ms and Fine ±100 µs per channel, read out in ms, samples, or metres and feet
- Broadband Rotation ±180° via linear-phase Hilbert: 0° bypass, ±90° Hilbert, ±180° polarity flip, magnitude flat
- One tunable Allpass: 20 Hz–20 kHz, Q 0.1–10, 1st or 2nd order, polarity, and 2-pole HP/LP per channel
- Stereo or Mid-Side, each section linked or independent, plus an output stage: Mono Maker, Side Mix, Pan, Swap
Delay
Sub-sample time shift, by ear or by the numbers.
A polyphase sinc fractional delay shifts a channel far below a single sample. Coarse covers ±30 ms; Fine trims ±100 µs on its own control. Advance or delay, per channel. The readout shows the shift in ms, samples, or metres and feet. On by default.
Line up two sources
Pull a late close-mic earlier or push an early one back. Reported latency lets Align advance as easily as delay, so the lagging channel moves, not everything else in the session.
Haas width
A few milliseconds of Delay on one channel spreads a mono part. Sub-sample Fine resolution sets the exact offset; the Mono Mix checks the fold.
Coarse plus Fine
Coarse covers ±30 ms for the gross move; Fine trims ±100 µs on a separate control. A high-resolution polyphase sinc kernel resolves below one sample with no zipper noise.
Time as distance
Drag the readout to switch units, ms, samples, or metres and feet. Line a room mic up by the distance it sat from the source.
Broadband
Continuous phase rotation and per-channel polarity, magnitude flat.
A single bipolar Rotation control turns phase −180° to +180° through a linear-phase FIR Hilbert and a delay-matched dry path. 0° is a clean bypass, ±90° a pure Hilbert, ±180° a clean polarity flip. A per-channel Ø inverts polarity at the output. On by default.
Align without recolour
Rotate the whole band until two sources reinforce instead of cancel. Magnitude stays flat at every frequency, so the alignment lands without touching the frequency balance.
Widen the Side
Rotate the Side channel alone to decorrelate the edges and open the stereo image. The Mid holds the centre; a mono fold keeps only the Mid, so the widened Side drops out on fold-down. Check it with Mono Mix.
Clean endpoints
0° passes through untouched, ±90° is a true Hilbert transform, ±180° is an exact polarity flip. One continuous control spans the range.
Per-channel polarity
A dedicated Ø flips each channel's polarity independently, a hard 180°, applied at the output after every other stage.
Allpass
One tunable stage. Phase only, magnitude flat.
A single allpass stage bends phase around one frequency while magnitude stays flat, the move SSL X-Phase and Little Labs IBP are known for, on a curve you can watch. Freq 20 Hz–20 kHz, Q 0.1–10, 1st or 2nd order, polarity. Off by default.
Phase, exactly where needed
Slide the phase relationship into place around one band (the crossover region of a multi-mic source, a stubborn low-mid) while the tone stays as it was.
Depth and colour
Run the Allpass on one channel to add depth around a chosen band. The image gains dimension with no level change, a quasi-stereo move steered to the exact frequency.
Freq, Q, order
Sweep the corner 20 Hz–20 kHz and set Q 0.1–10. 1st order swings to −180°, 2nd order to −360° with Q. Switch order click-free.
Watch it bend
The phase curve draws the allpass S-curve sliding across the spectrum as you sweep, so you can see exactly where the stage is working.
Filter
2-pole HP and LP per channel, off at the ends.
A clean 2-pole high-pass, 20 Hz–15 kHz, and low-pass, 30 Hz–20 kHz, on each channel. Both read Off at the extremes. Filters cut, never boost. Off by default. Trim what does not belong before the signal leaves, or shape width per side.
Trim the ends
Roll sub-rumble off the bottom and air-band hiss off the top. A 2-pole slope per channel pulls what does not belong without reaching for an EQ.
Filter for width
High-pass one channel only to lift the wide content into the mids while the lows stay centred. A clean stereo spread from a frequency difference between the channels.
Per channel
HP and LP run independently on each channel or bus. Cut one side, leave the other, or set both to match.
Off at the ends
Both filters read Off at the extreme of travel, so a parked Filter is a true bypass, no residual slope on the signal.
Channels
Stereo or Mid-Side. Link to move together, unlink to run free.
Work in L/R, or flip the whole plugin to Mid-Side via a lossless sum/difference matrix that re-encodes to L/R. Each section links the two sides to one set of controls, or unlinks for independent control per channel or bus. Labels follow the mode automatically.
Independent alignment
Unlink to advance the left mic alone, or rotate phase on one channel only. Linked, both sides follow a single set of controls, fix a stereo pair as one.
Creative M/S moves
In Mid-Side, push the Side for width and hold the Mid for focus. Rotate the Side, delay the Side, filter the Side, image work the L/R view cannot reach.
Per-section Link
Each section carries its own Link. Linked sides share controls; unlinked sides run Delay, Rotation, Allpass, Filter, and polarity per channel.
Two live curves
Unlinked, the phase curve draws both sides at once, red and gold (Left and Right, or Mid and Side) so each move reads at a glance against the other.
Image
The finishing stage: Mono Maker, Side Mix, Pan, Swap.
The output stage, at the end of the chain, finishes the stereo image. Mono Maker folds lows to mono on the Side, 20–500 Hz. Side Mix balances M against S, 0–100%, 50% neutral. Plus Pan, L/R Swap, and a Mono Mix to check the fold. Routing for Stereo or M/S.
Anchor the bottom
Mono Maker folds everything below a corner, 20–500 Hz, to mono on the Side. The low end stays centred and translates to mono subs while the top keeps its width.
Balance and pan the image
Side Mix scales the Side from 0–100% around a 50% neutral to rein width in or open it up. Pan places the whole image; Swap exchanges L and R.
Check the fold
Mono Mix sums the output to mono at any time. Build width upstream, fold it down here, and confirm the picture holds without a second plugin.
End of chain
The output stage runs after every alignment stage, so image moves sit on the corrected signal. Routing follows Stereo or Mid-Side.
Capabilities
What it does
Five ways to align
Sub-sample timing, broadband phase rotation, a tunable allpass, polarity flip, and HP/LP filters: five corrective tools in one plugin.
Stereo or Mid-Side
Every control runs per channel, in L/R or Mid-Side. Link the two to move together, or unlink to work each side on its own.
Shape the stereo image
Mono Maker folds the lows to mono. Side Mix sets the stereo width. Plus Pan, L/R Swap, and a mono check.
Live phase curve
Broadband, Allpass and Filter summed and drawn full width. Two curves when unlinked, red and gold, Left and Right, or Mid and Side.
Support
Zero fluff (no-nonsense)
Compatibility
VST3 and AU. macOS 13 Ventura or later, Intel and Apple Silicon native.
Licensing
One licence key, activated locally in the plugin. No account, no dongle, no iLok.
Support
Direct email support. Feature requests welcome.
On the roadmap
Windows, AAX, and CLAP support are in development.
Comparison
Align vs the field
| Feature | Align | Voxengo PHA-979 | SSL X-Phase | Eventide P. Time Align | Little Labs IBP |
|---|---|---|---|---|---|
| Alignment | |||||
| Sub-sample time shift | ✓ | Whole-sample | Whole-sample | ✓ | Whole-sample |
| Broadband phase rotation | ✓ | ✓ | — | — | ✓ |
| Frequency-specific allpass | ✓ | — | ✓ | — | Hi/Lo |
| Stereo | |||||
| Full Mid-Side | ✓ | — | — | — | — |
| Per-channel link / unlink | ✓ | ✓ | ✓ | — | — |
| Stereo width control | ✓ | ✓ | — | — | — |
| Filtering | |||||
| High-pass / low-pass filters | ✓ | — | — | — | — |
| I/O | |||||
| Input gain | ✓ | — | ✓ | — | — |
| Output gain | ✓ | ✓ | ✓ | — | — |
| Sum-to-mono / mono check | ✓ | ✓ | — | — | — |
| Workflow | |||||
| A/B compare | ✓ | ✓ | ✓ | ✓ | — |
| Live phase-response curve | ✓ | — | ✓ | — | — |
Complete the workflow
See the problem before you fix it.
DeltaScope is the diagnostic half of the workflow: compare any two signals in time, frequency, and phase, and see exactly what changed.
Meet DeltaScope ›Still got questions? Read the Manual, or check our FAQ and Refund Policy