Speed up your sample chopping, loop creation, and instrument design workflow! Auto Loop Detector is a powerful Lua script for REAPER that automatically scans your audio and MIDI items to find perfect loop points based on RMS energy or Peak transients.

Whether you are extracting drum breaks, slicing vocals, or building massive sample packs, this tool will save you hours of manual editing.

There are two versions available: the Standard Version (100% Free) and the PRO Version (Supporter Exclusive) packed with advanced sound design and export features.

🟢 STANDARD VERSION (Free)

A robust and precise tool for everyday editing and slicing.

Core Features:

  • Dual Detection Modes: Choose between RMS (perfect for pads, vocals, and long textures) or Transient/Peak (ideal for drums and sharp percussion) with 2ms-5ms high precision.

  • Smart Processing: Automatically split, trim, strip silence, and apply auto-fades to prevent clicks.

  • Peak Normalization: Auto-scale volume to your target dB for consistent sample levels.

  • Intelligent Naming & Coloring: Batch rename sections automatically and append project BPM and Key (e.g., Loop_1_120bpm_C#m). Match track colors or randomize them for easy visual organization.

  • Workflow Integration: Built-in transport bar to seamlessly preview and navigate between detected loops without leaving the UI.

  • Custom Presets: Save and load your favorite detection settings for different instruments.

DOWNLOAD

💎 PRO VERSION (Supporter Exclusive)

Take your sound design to the next level. The PRO version includes everything in the Standard version, plus powerful tools to instantly turn your slices into playable instruments and professional sample packs.

Exclusive PRO Features:

  • Advanced Instrument Export: Automatically generate ready-to-play DecentSampler (.dspreset) and SFZ (.sfz) instrument patches right from your REAPER timeline.

  • Auto-Velocity Mapping: Automatically measure the RMS of your slices and stack them into dynamic, multi-layered velocity zones on a single MIDI key.

  • Slice to Sampler (Map to MIDI): Instantly map your chopped loops into REAPER's native ReaSamplomatic5000 (RS5k). It automatically creates a new track, loads the samples, and maps them chromatically starting from C4.

  • Generate Variations: With one click, generate 5 creative variations of your selected loops on a new track: Reverse, Half-time, Double-time, Octave Up (+12), and Octave Down (-12).

  • HTML Preview Generator: Automatically generates a sleek, interactive webpage (index.html) so you or your users can audition your newly exported sample pack in any browser.

  • 🥚 Plus a fun, hidden Easter Egg for sound mangling!

DOWNLOAD

⚙️ Requirements & Installation

  • Requires: REAPER v6.0+ and the ReaImGui extension (installable via ReaPack).

  • To Install: Simply download the .lua file, open REAPER, go to Actions > Show action list > New action > Load ReaScript, and select the downloaded file.

❤️ How to get it:

  • Standard Version: Just enter $0 to grab it for free! (Tips are always appreciated if you find it helpful).

  • PRO Version: This version is a special thank you to my Ko‑fi supporters. Simply buy me a coffee (or become a monthly supporter) to unlock the PRO download link instantly!

Happy looping and producing!




Hello everyone! First and foremost, I want to send my deepest gratitude to all my Monthly Supporters. Your continued support is the massive driving force that allows me to keep pursuing my creative passion and developing new tools.

Today, I’m incredibly excited to give you guys a brand new "secret weapon": Hosi Gullfoss!

This is a custom JSFX Plugin (Adaptive bidirectional spectral balancer) that I built entirely within REAPER. If you ever struggle with muddy mixes or harsh, masking resonances, this is your ultimate solution.


🌟 Key Features:

  • Real-time Adaptive EQ: Automatically analyzes and corrects frequency imbalances based on human auditory perception curves.

  • TAME & RECOVER: Automatically suppresses harsh, unwanted frequencies while bringing out hidden details and clarity.

  • Mid/Side Processing: Easily widen your stereo image without ruining the center mix.

  • Intuitive UI: Fully packed with sound shaping tools like Bias, Brighten, Smile EQ (Boost), and scalable FFT resolutions for both mixing and mastering.

⚠️ IMPORTANT NOTE: This plugin is an EXCLUSIVE reward strictly for my Monthly Supporters here on Ko-fi. It’s my special way of saying "Thank You" for having my back!


📥 How to install: Download the attached .jsfx file below and drop it directly into your REAPER Effects folder.


📥 Download: https://ko-fi.com/s/16d638b812


Once again, thank you so much for your amazing support! Happy mixing! 🎧🔥


La Chí Nhân — Hosian Luo



Hosi MEQ-5 v1.2.0, a faithful recreation of the classic Pultec-style mid-range equalizer developed specifically for REAPER. Created by La Chí Nhân (Hosi Prod) from NK RECORDING STUDIO, this plugin combines vintage passive circuit behaviors with modern digital precision.


[What's New in v1.2.0]


High Quality Mode (2x Oversampling): Runs the entire processing chain—including saturation—at double the sample rate to eliminate digital aliasing and EQ curve cramping.


Real-time Frequency Graph: A live visualizer covering 100Hz to 10kHz, allowing you to monitor your mid-range adjustments with surgical precision.


Embedded UI Support: Features a compact graph-only view that integrates directly into your REAPER Track (TCP) or Mixer (MCP) panels.


Tube Drive & Smoothing: Features non-linear tube saturation for harmonic warmth and coefficient interpolation to prevent "zipper noise" during automation.


[Key Features]


3-Band Control: Specialized Low-Mid Peak, Mid-Dip, and High-Mid Peak bands.


Low-Mid (200Hz - 1kHz): Add body and weight to your instruments.

Dip (200Hz - 7kHz): Effortlessly remove "mud" or boxiness from your mix.

High-Mid (1.5kHz - 5kHz): Enhance presence and clarity for vocals or lead tracks.





Stop aligning vocals manually! Introducing Hosi Align Takes – a powerful Lua script for REAPER that syncs your dubs and harmonies to a guide track instantly using FFT Cross-Correlation.

 

Developed by Hosian Luo (Hosi Prod), this tool brings a VocAlign-style workflow directly into REAPER's native environment using Stretch Markers.

 

✨ Key Features:

 

✅ FFT Accuracy: Advanced algorithm for precise alignment.

 

✅ ImGui Interface: Modern, clean, and easy to use.

 

✅ Smart Filters: Silence Gate & Smoothing to prevent artifacts.

 

✅ Real-time Tweaking: Adjust Strength and Offset on the fly.

 

✅ Presets Included: Ready for Vocals, Drums, and Bass.

 

📥 Download Script: https://store.lachinhan.xyz/l/VocAlign


The script is currently free for one week, after which it will cost $6. Hurry up and grab yours!

 

Requirement: Please install ReaImGui via ReaPack before using.

 

If you enjoy my work, consider supporting me! 

☕ Support Me: https://paypal.me/nkstudio



Hey guys, I developed a script to streamline the workflow for producers who use MIDI resources. Hosi BitMidi Finder lets you search the entire BitMidi database, preview files safely, and import them directly into your project—all within REAPER.

Key Features:

  • 🚀 Instant Search: Find thousands of MIDI files (classic songs, game themes, etc.) instantly.

  • 👂 Safe Preview: Auto-creates a preview track with ReaSynth and a Safety Limiter (-0.1dB). No more ear-blasting random MIDI velocities!

  • 🎹 Smart Import: Automatically detects General MIDI (GM) instruments and renames tracks accordingly (e.g., "Acoustic Guitar" instead of "Track 1").

  • Lightning Fast: Includes a smart caching system for instant results on repeated searches.


Donate to me: https://paypal.me/nkstudio




Hello everyone, I’m Hosian Luo (Hosi Prod).

For years, REAPER has been unmatched in terms of customization and mixing power. However, for electronic musicians and live performers, it has often lacked one critical feature found in other DAWs like Ableton Live or Bitwig: A native, non-linear Session View.

Today, I am proud to release Session Player (Ultimate Edition) v3.2. This isn't just a simple sampler; it is a complete workflow overhaul written entirely in Lua, designed to turn REAPER into a live performance powerhouse.

The Concept: Live Arrangement Injection

Unlike VST-based session viewers that trap your audio inside a plugin, Session Player works directly with REAPER’s architecture. I call this "Live Arrangement Injection."

When you trigger a clip or a scene, the script doesn't just play audio; it actively writes MediaItems to your project timeline in real-time. This means your live jams are instantly recorded as a linear arrangement, ready for mixing and editing the moment you stop playing.

What’s New in Version 3.2?

This update is a massive leap forward in stability and feature set:

  • Dynamic Scene Management: You can now add, remove, and duplicate scenes instantly via the UI without diving into settings.

  • Intelligent Waveform & MIDI Visualization: I’ve optimized the rendering engine to include visibility culling (saving CPU) and added a mini Piano Roll view for MIDI clips.

  • Scene Follow Actions: Automate your performance. You can now set scenes to automatically trigger the "Next," "First," or "Stop" action after a set number of bars.

  • Advanced Live Looping: The new "Global Record" logic handles latency compensation perfectly, allowing you to capture loops on the fly and have them instantly quantized and playing back.

  • Visual Feedback: Clips now inherit track colors, pulse when playing, and flash when queued for recording.

Key Features

Why I Built This

As a producer, I wanted the freedom to improvise without leaving the REAPER environment I love. I wanted to bridge the gap between "jamming" and "finishing a track." Session Player v3.2 is the result of that vision.

Whether you are sketching out an arrangement or performing a full set live, I hope this tool inspires you to create in new ways. 


Download free: https://store.lachinhan.xyz/l/session

 

Donate to me: https://paypal.me/nkstudio

Happy producing, Hosian Luo (Hosi Prod)



Tired of manually mastering every single track? Want to try mastering 1 track against 10 different references without spending all day?


The "Matchering 2.0 GUI" script for REAPER. This is a game-changing tool that allows you to batch-process your mastering entirely automatically, right inside REAPER.


🔥 KEY FEATURES:


* Intuitive and easy-to-use ReaImGui GUI.

* Unlimited batch processing.

* Mode 1 (N-Targets -> 1-Ref): Master multiple songs against ONE reference.

* Mode 2 (1-Target -> N-Refs): Master one song against MULTIPLE different references (perfect for A/B/C... comparisons).

* Automatically creates a "Matchering_Masters" folder.

* Automatically imports the mastered file back into the project.

* Automatically mutes the original processed items.


DOWNLOAD


Donate me: https://paypal.me/nkstudio