ADSR are offering 40% off the recently released GrandEQ by DDMF for a limited time, now only £82.51, (usually £138.18). The offer ends March 31st.
GrandEQ is nothing else but the culmination of what we here at DDMF have learned in the years since the first software EQ was released back in 2006. It represents the state of the art of equalizer algorithms.
The goal in digital equalizer design is always to reduce the amount of digital artefacts which are introduced due to the necessarily finite sampling frequency. In its minimum phase setting, GrandEQ manages to do just that to an extent larger than most other EQs, and notably both in the amplitude and in the phase domain, while introducing only a very small amount of latency.
The result is a very open and clear sound with, at the same time, excellent CPU efficiency. Its linear phase setting stays completely in the time domain, using an elaborate time-reversal algorithm and 2-fold oversampling to ensure excellent amplitude and (flat) phase response with the lowest possible amount of digital distortion.
To further clarify what is meant by accurate magnitude and phase response, let’s look at a Bell filter (+9 dB at 10 kHz). Looking at the magnitude response of GrandEQ (shown in red in the following image), note that it follows the true analog response (yellow) so close that it is barely visible below 20 kHz. Both a standard digital EQ (blue) and a decrampled digital EQ (green) show clear differences towards the higher frequency range.
This excellent behavior also carries over to the phase domain: while all software EQs ultimately show a phase response of 0 at half the sampling (Nyquist) frequency, GrandEQ manages to follow the analog curve all the way until > 20 kHz, while the two other EQs clearly show a different response.
Features include:
- Minimum Phase algorithm: accurate magnitude and phase matching to analog targets
- Linear Phase algorithm: forward-backward approach + oversampling
- 7 independent bands, with 7 different band types: Bell, Low Shelf, High Shelf, Low Cut, High Cut, Bandpass and Notch
- two internal states (A/B) for quick switching between alternative settings
- Left-Right or Mid-Side operation
- Two-channel EQ which can be linked/unlinked
The GrandEQ is available to PC and Mac users (VST2, VST3, AU and AAX).
For more information on the GrandEQ, click here:
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