FlexCurve 1.0.0

Initial release of FlexCurve 1.0.0

bundled with CalCurve 1.0.1

FlexCurve is a VST3 headphone-correction curve editor, layer-based calibration tool, AutoEQ workspace, and FIR renderer. It imports local TXT, CSV, Equalizer APO / Wavelet GraphicEQ, APO Parametric EQ, Melda FreeForm EQ CSV, and WAV FIR files as editable layers, previews changes in real time, blends active layers into an Average curve, and renders the result as Minimum, Natural, or Linear phase FIR.

This release also includes CalCurve 1.0.1, the simpler companion plugin. CalCurve is intended for direct use of already-exported calibration files: load a TXT/CSV correction curve or FIR WAV, choose the phase mode, and apply it through convolution. It does not include layers, curve editing, Target/RAW references, AutoEQ, or bundled target workflows.

Use FlexCurve when you want to edit, combine, compare, AutoEQ, render, export, or build calibration curves. Use CalCurve when you only want to load and apply a finished correction curve or FIR with a lightweight interface.

Download

Download the release assets below:

FlexCurve.zip
CalCurve.zip

Install

Extract the ZIP file you want to use.

Inside each extracted folder, find:

FlexCurve.vst3
CalCurve.vst3

Copy the full .vst3 folder/bundle to your Windows VST3 plugins folder, for example:

C:\Program Files\Common Files\VST3\

Open your DAW and rescan plugins if needed.

FlexCurve highlights

• Editable multi-layer headphone correction workflow.
• TXT, CSV, GraphicEQ, APO Parametric EQ, Melda CSV, and WAV FIR import.
• Target curves and RAW measurement references.
• AutoEQ from RAW measurement to Target.
• Corrected Measurement tracking curve.
• Average curve rendering.
• Graphic EQ, Variable EQ, and Parametric EQ editing.
• Minimum, Natural, and Linear phase FIR rendering.
• FIR export at the current host sample rate.
• Input/output metering, Auto Gain, Output Gain, and safer A/B loudness matching.
• Presets with embedded curve data.

CalCurve 1.0.1 highlights

• Lightweight VST3 convolution calibration plugin.
• Loads TXT/CSV correction curves and WAV FIR files.
• Converts curves internally to FIR.
• Minimum, Natural, and Linear phase modes.
• Auto Gain for closer Dry/Wet and Bypass comparison.
• FIR export using the current host sample rate and phase mode.
• User presets with embedded fallback curve data.

Notes:
FlexCurve and CalCurve do not ship as a closed headphone database or simulation engine. They are designed for local calibration files, exported correction curves, FIR files, and user-managed measurement/target workflows.

Example curves:
https://github.com/Mixomo/My-Headphones-Calibration-Files

More calibration curves:
https://autoeq.app/

squig.link:
https://squig.link/

CalCurve v1.0.1

Important Fix & Additions

• Fixed the curve/FIR change when changing the sample rate.

• Added a button to export FIR at the same sample rate as the DAW.

Download

Download:

CalCurve.zip

from the release assets below.

Install

1. Extract CalCurve.zip.

2. Inside the extracted folder, find:

   CalCurve.vst3

3. Copy the full CalCurve.vst3 folder/bundle to your Windows VST3 plugins folder, for example:

   C:\Program Files\Common Files\VST3\

4. Open your DAW and rescan plugins if needed.

Notes

CalCurve does not include headphone databases, simulations, or target curve selection. It is intended for already-exported/calibrated correction curves or FIR files.

• Example curves:
  https://github.com/Mixomo/My-Headphones-Calibration-Files
• More calibration curves:
  https://autoeq.app/
• squig.link:
  https://squig.link/

CalCurve v1.0.0

Initial release of CalCurve.

CalCurve is a focused VST3 plugin for local headphone calibration. It loads FIR WAV files directly, or TXT/CSV correction curves which are converted internally to FIR and applied through convolution.

Download

Download:

CalCurve.zip

from the release assets below.

Install

1. Extract CalCurve.zip.

2. Inside the extracted folder, find:

   CalCurve.vst3

3. Copy the full CalCurve.vst3 folder/bundle to your Windows VST3 plugins folder, for example:

   C:\Program Files\Common Files\VST3\

4. Open your DAW and rescan plugins if needed.

Notes

CalCurve does not include headphone databases, simulations, or target curve selection. It is intended for already-exported/calibrated correction curves or FIR files.

• Example curves:
  https://github.com/Mixomo/My-Headphones-Calibration-Files
• More calibration curves:
  https://autoeq.app/
• squig.link:
  https://squig.link/