Controller EQ-01 Documentation
Coming Soon!
The Mixing and Mastering EQ we always wanted.
A faithful recreation of a mastering EQ. An EQ with character and musicality on every parameter.
Made to be used in the MP Host and automaps in an optimal way on the MP Controller.
The plugin recreates the curves and phase shift of a classic hardware mastering EQ.
It operates in L/R and M/S modes. When unlnked, pressing on Left/Right or Mid/Side buttons the controller goes to the correponding page that carry the selected mode's parameters, so you can control it just like hardware device.
The plugin features an automatic gain compensation so that the output volume remains the same when you tweak parameters.
The plugin operates in minimum and exact phase modes
Phase Modes: Minimum and Exact
Both modes give exactly the same frequency response. They differ only in phase, latency and pre-ringing.
| MIN (Minimum phase) | EXACT | |
|---|---|---|
| Latency | 0 samples | 1024 samples at 44.1 kHz (about 23 ms, the same time at every sample rate) |
| Phase | Built from the magnitude curve alone | The measured phase of CTRL-EQ-01 |
| Pre-ringing | None (all ringing comes after the sound) | Slight, as in the measured EQ |
| Match to the measured EQ |
Magnitude exact, phase within about 2° below 19 kHz | Magnitude exact, phase within 0.85° |
| CPU | Lowest | Slightly higher (more noticeable at 88.2 / 96 kHz) |
How each mode works
- MIN takes the target magnitude and computes the minimum-phase filter that has exactly that magnitude. It is causal: nothing comes out before the input, so there is no latency and no pre-ringing.
- EXACT uses the measured phase as well. The measured responses ring slightly before the main impulse, mostly because of the steep converter edge near 21 kHz in the original's sampled responses. To play that early part, the plugin delays everything by 1024 samples and reports that latency to the host, so your DAW compensates and the track stays in time.
Below 19 kHz the two modes differ by at most a few degrees, which is inaudible on its own.
When to use which
- MIN is the default. Use it for tracking, live use, low-latency monitoring and almost all mixing.
- EXACT is for when you need phase-identical behaviour to the measured EQ, for example:
- nulling it against the original;
- parallel processing, where the EQ'd copy must stay phase-coherent with another copy processed the same way;
- mastering, when you want the exact reference.
Switching modes
The phase display
The phase panel below the spectrum always shows the measured phase. In MIN mode the actual phase is within about 2° of what is drawn below 19 kHz.