Floop Multiband Transient Shaper is a high-performance REAPER Multiband Transient Shaper written in JSFX. It provides independent attack and sustain control across three frequency bands, allowing precise transient sculpting without phase smear, pumping, or unwanted artifacts.
Designed for punchy drums, controlled bass, and tight mix buses, this processor combines transparent crossovers, up to 8x oversampling, LUFS-based auto-gain, and integrated output protection in a mastering-grade workflow.
Compatible natively with REAPER.
Key Features of this REAPER Multiband Transient Shaper
- 3-Band Processing – Independent Attack, Sustain, and Gain for Low, Mid, and High bands
- Transparent Crossovers – 12dB/oct or 24dB/oct slopes with phase-correct recombination
- Up to 8x Oversampling – Reduces aliasing during heavy transient enhancement
- LUFS Auto-Gain (ITU-R BS.1770-4 compliant) – Accurate loudness matching
- Soft Clipper + Lookahead Limiter – Output protection against digital overs
- Delta Monitoring – Audition only on what is being added or removed
- Detector High-Pass Filter (100 Hz) – Prevents low-end pumping
- Real-Time Visual Feedback – Gain reduction and crossover display
How the REAPER Multiband Transient Shaper Works
Unlike broadband transient shapers, this processor splits the signal into three phase-aligned bands:
- Low Band – Controls punch and body of kick and bass
- Mid Band – Shapes attack clarity in snares, guitars, vocals
- High Band – Enhances presence and snap
Each band provides:
- Attack – Boost or attenuate the initial transient
- Sustain – Increase or reduce the tail/body
- Gain – Independent band output adjustment
- Mute / Solo / Bypass – Full per-band control
Crossovers are phase-compensated to ensure transparent recombination without frequency dips or buildup.
Oversampling (2x / 4x / 8x) ensures transient shaping remains clean even at aggressive settings.
Practical Applications
Drums
- Add snap to snares without over-brightening cymbals
- Tighten kick sustain without thinning low end
- Increase perceived punch without additional compression
Bass
- Enhance attack definition
- Reduce sustain bloom
- Maintain low-end integrity using detector HPF
Mix Bus
- Subtle transient emphasis for perceived clarity
- Sustain reduction to clean up muddy mixes
- Safe enhancement using Auto-Gain and output limiting
Sound Design
- Extreme transient reshaping with Delta monitoring
- Controlled destruction using Soft Clip and 8x Oversampling
Global Controls Explained
- Oversampling – Off / 2x / 4x / 8x
Higher settings improve processing quality but increase CPU and latency. - Auto Gain – LUFS-based loudness compensation
Ensures fair A/B comparison. - Soft Clip – Analog-style peak rounding.
- Lookahead Limiter – Prevents digital clipping on aggressive settings.
- Detector HPF to prevents sub-frequency triggering
- Delta – Outputs only the processed difference signal.
REAPER handles latency automatically via Plugin Delay Compensation (PDC).
Compatibility
- REAPER v7.5x or later
- Windows tested
- macOS and Linux are expected to be compatible (JSFX is cross-platform)
How to Install Floop Multiband Transient Shaper In Reaper
Open REAPER
Go to Extensions → ReaPack → Import Repositories…
Open Extensions → ReaPack → Browse Packages
Search for “Floop Multiband Transient Shaper”
Install and Apply
Advanced users can manually install the plugin from the GitHub Release page.
REAPER Multiband Transient Shaper Frequently Asked Questions (FAQ)
Q: Is this REAPER Multiband Transient Shaper suitable for mastering?
Yes. Transparent crossovers, LUFS-based Auto-Gain, and output safety tools make it suitable for bus or mastering contexts.
Q: Does 8x oversampling introduce latency?
Yes. REAPER compensates automatically via PDC.
Q: Can I use it outside REAPER?
Yes, through the YSFX wrapper.
Q: Is it free?
Yes.
The project is hosted on GitHub, where the source code and manual installation files are maintained.
