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Head-to-head · Room Correction Software

ARC System 4 vs DecayCore

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score ARC System 4 #4 in Room Correction Software 8.8/10 Paid ✓ 3 of 4 features Visit IK Multimedia
DecayCore #7 in Room Correction Software 7.8/10 Free plan Free plan✓ 4 of 4 features Visit DecayCore

ARC System 4 leads on 0 checks, DecayCore on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreARC System 4 · 8.8/10
  • Free planonly DecayCore
  • Most featuresDecayCore · 4 of 4

ARC System 4 scores higher on our rubric for room correction software: 8.8 against 7.8 out of 10; our editors rank them #4 and #7.

DecayCore offers free plan; ARC System 4 doesn't. On correction scope, DecayCore gives you Multichannel where ARC System 4 offers Stereo.

ARC System 4 is the better fit for DAW-based stereo monitoring correction. DecayCore is the better fit for free multichannel FIR correction experiments.

  • ARC System 4 fits best

    DAW-based stereo monitoring correction

  • DecayCore fits best

    Free multichannel FIR correction experiments

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Side by side

Feature ARC System 4 8.8/10 Visit ↗ DecayCore 7.8/10 Visit ↗
At a glance
Editor score 8.8 7.8
Ranking #4 in Room Correction Software #7 in Room Correction Software
Best for DAW-based stereo monitoring correction Free multichannel FIR correction experiments
Pricing model Paid Free
Starting price — Free plan
Free plan — ✓ (best)
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS Windows, Linux
Support Docs Email, Docs
Integrations 1 integrations 4 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business
Features ARC System 4 3/4 · DecayCore 4/4
Room measurement tools ✓ ✓
Automatic room EQ ✓ ✓
Convolution correction Not checked yet ✓ (best)
Hardware calibration ✓ ✓
Specs
Maximum channels 2 channels Not checked yet
Supported operating systems Cross_platform Cross_platform
Correction scope Stereo Multichannel
Our review
Pros
  • Measures room response and generates monitoring correction profiles
  • Includes over 20 monitor-emulation profiles and nine target curves
  • Offers natural-phase or linear-phase modes with adjustable correction limits
  • Guided calibrated-microphone measurement includes RT60 and harmonic data
  • Supports linear, minimum, mixed and asymmetric-phase FIR filters
  • Exports WAV and configurations for CamillaDSP, Roon, Equalizer APO and MiniDSP
Cons
  • Correction scope is limited to two channels
  • The software-only plan does not include a measurement microphone
  • Support is provided through documentation
  • Free use is limited to non-commercial work
  • Desktop support is limited to Windows and Linux
  • No AI features are included
Our verdict

ARC System 4 is desktop room-analysis and correction software for studio monitoring on Windows and macOS. It measures acoustic response around a listening position, generates a correction profile and applies that profile through a DAW…

Read the review →

DecayCore is a locally run room-correction application for listeners and small audio projects that need multichannel FIR processing. It guides acoustic measurement through a calibrated microphone input, captures RT60 decay and…

Read the review →
  1. ARC System 4Room Correction Software 8.8Paid
  2. DecayCoreRoom Correction Software 7.8Free plan

Strengths and trade-offs

  • ARC System 4 — where it wins

    • Measures room response and generates monitoring correction profiles
    • Includes over 20 monitor-emulation profiles and nine target curves
    • Offers natural-phase or linear-phase modes with adjustable correction limits

    Where it doesn't

    • Correction scope is limited to two channels
    • The software-only plan does not include a measurement microphone
    • Support is provided through documentation

  • DecayCore — where it wins

    • Guided calibrated-microphone measurement includes RT60 and harmonic data
    • Supports linear, minimum, mixed and asymmetric-phase FIR filters
    • Exports WAV and configurations for CamillaDSP, Roon, Equalizer APO and MiniDSP

    Where it doesn't

    • Free use is limited to non-commercial work
    • Desktop support is limited to Windows and Linux
    • No AI features are included

More comparisons

All room correction software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update