HALO9 Player — VST3 Plugin

A polished 8-pad sampler + loop player VST3, designed for FL Studio and any VST3-compatible DAW on Windows and macOS.

---

Features

Feature	Details
8-Pad sampler	One-shot playback, MIDI C1–G1 (notes 36–43), 8 voices
Loop player	Load any audio file, looping, with dedicated volume
Pack Browser	Scans ~/Documents/HALO9/Packs for drum/loop libraries
Master Volume	Global output level
Lowpass Filter	100 Hz – 20 kHz with warm log taper
Atmosphere macro	Drives reverb depth + stereo width + LPF tilt simultaneously
State save	Full DAW preset recall (pad paths, loop path, all knobs)

---

Pack Folder Structure

Place sample packs in:

~/Documents/HALO9/Packs/
  MyPack/
    Drums/
      Kick.wav
      Snare.wav
      Hat.wav
      ...
    Loops/
      FullLoop.wav
      TopLoop.wav
      ...

• If no Drums/ subfolder exists, root audio files are treated as drum samples.
• If no Loops/ subfolder exists, the loop list is empty for that pack.
• Supported formats: .wav .mp3 .aif .aiff .flac .ogg

---

Build — macOS

Prerequisites

• Xcode 14+ (Command Line Tools)
• CMake 3.22+

Steps

git clone https://github.com/juce-framework/JUCE.git ~/JUCE   # optional — or let FetchContent handle it
cd /path/to/HALO9_Plugin
cmake -B build -G Xcode
cmake --build build --config Release

The VST3 bundle is output to:

build/HALO9_Player_artefacts/Release/VST3/HALO9 Player.vst3

Copy it to your VST3 folder:

cp -r "build/HALO9_Player_artefacts/Release/VST3/HALO9 Player.vst3" \
      ~/Library/Audio/Plug-Ins/VST3/

With a local JUCE checkout (skip FetchContent)

cmake -B build -G Xcode -DJUCE_DIR=/path/to/JUCE

---

Build — Windows

Prerequisites

• Visual Studio 2022 (Desktop C++ workload)
• CMake 3.22+

Steps (PowerShell)

git clone https://github.com/juce-framework/JUCE.git C:\JUCE   # optional
cd C:\path\to\HALO9_Plugin
cmake -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release

The VST3 bundle is output to:

build\HALO9_Player_artefacts\Release\VST3\HALO9 Player.vst3

Copy it to your DAW's VST3 scan folder (e.g.):

C:\Program Files\Common Files\VST3\

With a local JUCE checkout

cmake -B build -G "Visual Studio 17 2022" -A x64 -DJUCE_DIR=C:\JUCE

---

MIDI Map

Pad	MIDI Note	Default Key
1	C1 (36)	—
2	C#1 (37)	—
3	D1 (38)	—
4	D#1 (39)	—
5	E1 (40)	—
6	F1 (41)	—
7	F#1 (42)	—
8	G1 (43)	—

---

Parameters

ID	Range	Default	Description
master_volume	0 – 1	0.7	Output gain
lowpass_cutoff	100 – 20000 Hz	20000	Lowpass filter frequency
atmosphere	0 – 1	0.0	Reverb + width + LPF tilt macro
loop_volume	0 – 1	0.8	Loop player level

All parameters are automatable in the DAW.

---

Signal Chain

[PadSampler]  ──┐
                 ├──► M/S Width ──► [LPF] ──► [Reverb] ──► [Master Gain]
[LoopPlayer]  ──┘

The Atmosphere knob drives:

• Reverb room size 0 → 0.85
• Reverb wet level 0 → 0.45
• Stereo width ×1.0 → ×2.2
• LPF cutoff reduction (up to −50% at maximum)

halo9-plugin