Target curve
Fine-tune the tonal balance after correction without rebuilding the FIR export.
- Target curve shaping inside the convolver
- Useful for PA voicing and monitor translation
- Preset save/recall for repeatable setups
FIRForge · FIR correction for PA systems and studio monitorsHear what your speakers
were designed for.
FIR correction for PA systems and studio monitors. Measure multi-position response, create spatially averaged minimum-phase FIR correction, and apply it through a zero-added-delay AU/VST3 convolver.
macOSAUVST3Standalone14-day trial
Live tested
SoundGrid + MainStage: +3 ms host path
Measured over the SoundGrid routing baseline at 48 kHz / 16 buffer.
0 samples
Convolver delay
32k-tap FIR loaded
+3 ms
Host path
WSG + MainStage
1.31 ms
WSG conversion
Measured hardware delta
0 samples is FIRForge Convolver's own processing delay. Host path and conversion latency come from the surrounding rig.
Workflow
Measure. Design. Deploy.
A complete FIR workflow from spatial measurement to bounded minimum-phase correction and zero-added-delay convolution.
01
Capture a practical spatial average.
FIRForge Studio is built around moving-mic continuous sweep measurement, so you can capture a useful spatial average without turning setup into a lab.
- Moving-mic continuous sweep measurement
- Spatially averaged power response with 1/6-octave smoothing
- Start/end sweep skipping
- Power response focused view
- Measurement up to 192 kHz
02
Create correction that stays inside useful boundaries.
Minimum-phase FIR correction is generated from the measured power response, with correction range and safety controls kept visible before export.
- Minimum-phase FIR filter
- Correction range control
- 4k-32k tap filters
- ~1.46Hz precision with 32k tap filter
- 48/96 kHz output sample rates
03
Deploy through a zero-added-delay convolver.
FIRForge Convolver loads the correction in AU/VST3 hosts and keeps show-critical controls close: bypass, gain compensation, L/R balance, crossover, target curve, and preset recall.
- Adds 0 samples processing delay, including 32k-tap filters
- Target curve shaping
- Crossover filters
- Automatic input gain compensation
- Automatic L/R balance
- Input-compensated bypass
- Preset save/recall
- Load WAV impulse responses, including headphone correction IRs
Convolver tools
Shape and align from the same plugin.
Once the FIR is loaded, FIRForge Convolver keeps the practical finishing controls in the host: tonal shaping, crossover cuts, polarity, delay, bypass, and recall.
Crossover
Use built-in cuts and alignment controls when your setup needs it.
- Linkwitz-Riley and Butterworth cuts
- Polarity flip
- Delay in ms, samples, and meters
Measured proof
0 samples processing delay in the convolver.
FIRForge Convolver keeps its own processing delay at zero samples. The numbers below separate that from measured host/routing paths and hardware conversion layers.
0 samples
FIRForge Convolver
Processing delay with a 32k-tap FIR loaded
measured
+3 ms
SoundGrid + M1 Mac mini + MainStage
Added host path over measured SoundGrid routing at 48 kHz / 16 buffer
measured path
+6.48 ms
Behringer WING + Ableton Live
Added host/USB path over measured WING routing at 48 kHz / 32 buffer
measured path
1.31 / 1.68 ms
Measured conversion layers
SoundGrid and Behringer WING analog conversion deltas in the tested paths
hardware
System latency depends on interface, routing, host, buffer size, sample rate, driver behavior, and hardware. Measure your own rig before critical use.
Pricing
149€ one-time.
A 14-day trial for engineers who need to test FIRForge on their own interface, host, routing, and monitor or PA system before buying.
Windows is planned, but no release date is promised.
FIRForge
FIR correction for PA systems and studio monitors
149€
one-time
- FIRForge Studio measurement and filter design app
- FIRForge Convolver AU/VST3 plugin
- Universal Binary - Intel + Apple Silicon
- macOS 10.13+ Intel / macOS 11+ Apple Silicon
- One activation key for one machine
- Local activation file after trial or full activation
FAQ
Is FIRForge meant for live sound or studio work?
Both. FIRForge is live-first for PA systems, fills, subs, tops, touring rigs, and venue systems, but the same workflow also applies to studio monitors. The goal is a more familiar tonal balance from system to system, so you are not rebuilding your mix perspective from scratch every night.
Does FIRForge need internet during a show?
No. Internet is required only for trial activation or full activation. After activation, FIRForge runs locally from a signed license file.
Does this replace Smaart or REW?
No. FIRForge is not a full measurement suite. It is built for a fast correction workflow: capture a practical spatial average, create a bounded minimum-phase FIR filter, and deploy it quickly.
What does correction not fix?
It will not fix broken speakers, poor speaker placement, coverage problems, bad gain structure, or an alignment problem that should be solved physically. FIRForge is for measured tonal correction after the system fundamentals are handled.