DecayCore Measure the room. Reveal the music.
Menu

Room measurement and FIR correction

Measure the room.
Reveal the music.

DecayCore measures how your speakers behave in your room and creates correction filters for your playback system.

Use the guided measurement workflow or import existing measurements, then export WAV filters for CamillaDSP, Roon, Equalizer APO, MiniDSP, and other FIR-capable systems.

Download DecayCore Create your first filter See a measured example

From measurement to filter

  1. Measure or import. Measure left and right speakers in DecayCore, or load compatible REW text or impulse-response files.
  2. Generate. Start with Automatic mode and the Asymmetric filter type. DecayCore searches for a conservative result and reports the settings it used.
  3. Export and verify. Load the WAV filters into your convolver, then measure again with correction active.

Follow the complete first-filter workflow

What DecayCore is designed to do

Correct measured problems

DecayCore reduces supported peaks and broad response errors without trying to fill every deep cancellation.

Protect headroom

Correction strength, bass boost, timing changes, and filter gain stay inside explicit safety limits.

Show its work

Result graphs and the exported summary explain the selected filter, warnings, limits, and effective settings.

Measured evidence

One inspectable room, not a universal promise

The published case study compares one uncorrected measurement with four FIR results generated from the same REW project. It includes response, phase, group-delay, step, distortion, and waterfall views.

Read the method, limitations, and full report

Response from 15 to 250 Hz before correction and with four DecayCore FIR modes
Published 15–250 Hz comparison from the included REW project.

Interface

Work through the numbered pages from measurement and files to settings, target, correction, and results.

Measure page with audio devices and guided room-measurement controls
Measure — configure devices and run a guided session
Target page with measured speaker responses and target preview
Target — inspect the measurements and target curve
START and Results page ready to generate filters from loaded measurements
START / Results — generate filters and follow progress

Learn more

Measurement

Supported platforms, microphone setup, guided capture, and external imports.

User manual

The practical reference for settings, results, export, and troubleshooting.

Engineering

How DecayCore handles magnitude, phase, timing, decay, safety, and reproducibility.

Glossary

Short definitions for the acoustic and DSP terms used in the documentation.

DecayCore was formerly called CamillaFIR. The name changed to avoid confusion with CamillaDSP; CamillaDSP compatibility remains.