DIRLoader Lite – free IR loader
Dual parallel impulse responses for VST3 / AU
A free dual parallel IR loader for producers and sound designers — load two impulses, crossfade and bias the blend, visualize with a spectrogram, and reshape tone with Tune.
What it does
DIRLoader Lite turns static impulse responses into a playable parallel IR setup — dual slots, visual feedback, and expressive blending without interrupting your session.
Dual IR slots
Load two impulse responses in parallel and process them together
Spectrogram
Real-time IR spectrogram visualization per slot
Per-IR bypass
Solo or mute each IR without unloading it
XFade
Phase-coherent crossfade between the two impulse responses
Bias
Global mix bias for precise control over the combined output
Tune
Morph the active IR frequency response toward a target shape
Waveform view
See the input signal in dry or wet mode while you work
Realtime-safe DSP
Low-latency convolution built for live session use
Controls
| Control | What it does |
|---|---|
| IR A / IR B | Load, replace, or unload each impulse response |
| BYPASS A / B | Bypass an IR slot without clearing it |
| XFADE | Crossfade / blend between the two loaded IRs |
| BIAS | Global mix bias of the combined IR output |
| TUNE | Morph frequency response toward a target curve |
| SPECTROGRAM | Visualize each IR’s spectral content |
| WAVEFORM | Input waveform display (dry or wet) |
Tips
- ▸Load a room and a character IR, then use XFade to find the sweet spot.
- ▸Bypass one slot to A/B quickly without reloading files.
- ▸Use Bias to keep wet level consistent as you morph between IRs.
- ▸Tune gently — small moves reshape tone without wrecking the impulse.
System requirements
- ✓macOS 11 or later (Apple Silicon / ARM64)
- ✓Any DAW that supports VST3 or Audio Unit (AU)
Download
Enter your email once, then download the installer.
Mac download currently supports Apple Silicon (ARM64) only.
Licensing
DIRLoader Lite is free. No license key required — install, rescan your DAW, and load your IRs.
Need help? Contact support.
Frequently asked questions
Explore more
Make some noise
Free dual IR loading with musical control — download and build your spaces.
Download free