Design a custom frequency curve and export it as a noise file. Drop the result into any Match EQ as a reference — your curve becomes the target. Start on the left, finish on the right.
Theme Follow system, or force light/dark.
Step 1 — Build Your Frequency Grid
Anchors are the frequency points where your curve can change direction. The slope between each pair of anchors is what you set. More anchors = more control. Fewer anchors = a simpler, smoother curve.
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Quick Slope Tools
Check the boxes next to the sections you want to change, type a slope value, then hit Apply. Use the range fields to quickly select a group of sections by number (e.g. S0 through S5).
Your Frequency Anchors & Slopes
Each row is a frequency point. The slope column sets how fast the level rises or falls between that point and the next one (in dB per octave). Negative = tilts darker. Positive = tilts brighter. The DC row is always flat — this is correct behavior.
Noise Color Presets
Step 2 (Optional) — Match a Reference Track
Load any song, mix, or reference track. The tool reads its spectral shape across the whole file and automatically sets your slopes to match — the same concept as a Match EQ learning from a reference. Works best on full, full-range mixes or masters.
No file loaded.
Analyzes the entire file (not just a clip), averages both channels to mono, and applies 1/6 octave smoothing — matching the same view you would see in a spectrum analyzer set to Infinite RMS capture. Results feed directly into the slope table above.
Step 3 — Export Your Noise File
Generates a noise file shaped to exactly match the curve you designed. Import it into any Match EQ as the reference — the EQ will read its spectrum and use your curve as the target.
Hz
The frequency where your curve sits at 0 dB. Everything above and below is measured relative to this point. 1000 Hz is a standard choice.
Longer files give Match EQ plugins more data to learn from. 262k ≈ 5.5 sec at 48k. 1M ≈ 22 sec. Longer is usually better.
dBFS
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Changes the randomness of the noise while keeping the same spectral shape. Any number works — only matters if you need a different variation of the same curve.
Tip: "Flat / White" gives you flat noise to confirm your Match EQ is responding. "Pink (−3)" gives a gentle downward tilt common in music references. The output is generated directly from the spectrum — not filtered — so what you see in the curve is exactly what you get in the file.