EQ
Causa
One EQ, four phases.
One-time purchase, no subscription. No account, no node-lock, no internet connection. Your license file is emailed the moment payment completes, or try it free for 14 days first.
Covered by Production Expert
Overview
A 24-band parametric EQ with four phase modes, running from an analog EQ's own phase to none at all, plus per-band dynamics and surround support up to 32 channels. The frequency response is identical in every mode.
Causa is a 24-band parametric EQ. Bands go straight onto the curve: place one, drag it, choose its shape. The vertical axis stretches on its own to fit whatever you build.
Besides the usual phase choices, Causa has Analog mode, the phase response of an analog EQ. One button switches from there to linear phase. The frequency response is the same in every mode.
Linear phase puts a little energy ahead of transients. Perceptual mode holds that back while keeping the phase close to flat.
Any band can also carry dynamics, on its own: Dynamic moves the whole band once the level crosses a threshold, Spectral holds down only what protrudes inside the band, and Expansion lifts whatever falls below.
Features
Four phase modes
Native with no latency at all, Analog at 6.7 ms for an analog EQ's phase at much higher precision, then Perceptual and Linear. The menu runs top to bottom by increasing latency.
The curve does not move
Switching phase changes what happens to phase and nothing else. The frequency response is the same in all four. Switching settles in about 0.1 to 1 second and audio keeps playing throughout.
24 bands, eight shapes
Bell, Low Shelf, High Shelf, Notch, High-Pass, Low-Pass, Band-Pass and Tilt Shelf. High-Pass and Low-Pass run 6 to 48 dB/oct. Notch, HP, LP and Band-Pass carry no gain and act as frequency handles.
Q to 40
10 Hz to 30 kHz, ±30 dB, Q from 0.1 to 40. Wide enough to shape a whole region and narrow enough to take out one resonance.
Dynamics, per band
Dynamic, Spectral or Expansion on any band, one at a time. Threshold sits at AUTO by default, which leaves RNG as the only control you need. RNG is the depth itself, so −3 moves 3 dB.
Spectral
Looks inside the band and holds down only what protrudes above the rest of it, which is a different aim from moving the whole band together. FOCUS runs from broad to sharp-peaks-only; SOFT lets short sounds through and catches what is sustained.
DELTA
Hear only what a band's dynamics are changing. Use it to hear how much the dynamics are doing.
Mid/Side, per band
Stereo, Mid, Side, Left or Right, chosen band by band rather than for the whole instance.
Surround to 32 channels
On a surround bus each band also gets a Speakers choice: 12 groups, from All Speakers to LFE, Centre, Wide, Top Front and Top Rear. Speakers decides which outputs a band reaches; Channel decides how it is treated within them.
Resizable window and typed values
Drag the bottom-right corner to fit the window to your screen. Every readout takes a typed value on a double-click, the LED above each switch follows host automation, and the build you are running is printed under the meters.
14-day full-featured trial
One-time purchase, no subscription. The license is an offline .gbc file: no account, no node-lock, no telemetry, and no internet connection at any point.
Everything is on the curve.
24 bands, eight shapes, and dynamics that open in the dock under whichever band you are working on.
Specifications
| Processing latency (Native) | None |
|---|---|
| Processing latency (Analog) | 6.7 ms |
| Processing latency (Perceptual / Linear) | Set by FIR Length: 85 ms at 8k, 683 ms at 64k (the default), 2.73 s at 256k |
| Spectral dynamics | Adds 85 ms when engaged |
| Bands | 24, each with its own shape, channel and dynamics |
| Frequency / gain / Q | 10 Hz – 30 kHz · ±30 dB · Q 0.1 – 40 |
| Channel formats | Mono, stereo, and surround up to 32 channels |
Phase mode, FIR Length and whether Spectral is engaged each change the latency, and changing any of them during playback rebuilds the host's delay compensation.
| Format | macOS | Windows |
|---|---|---|
| VST3 | Yes | Yes |
| Audio Unit (AU) | Yes | — |
| CLAP | Yes | Yes |
| AAX Native | Yes | Yes |
The installer ships VST3, CLAP and AAX on both macOS and Windows. Audio Unit is macOS only.
| Requirements | macOS | Windows |
|---|---|---|
| OS version | macOS 10.15 Catalina or later (Intel) · macOS 11.0 or later (Apple Silicon) | Windows 10 version 1607 or later, 64-bit |
| CPU | Apple Silicon or Intel (Universal binary) | 64-bit Intel or AMD |
