📖 Overview
Hosi Variator is a ReaScript using ReaImGui to
create a modern interface that allows randomization of multiple media item
properties in REAPER with precise control and preset management system.
✅ Requirements & Installation
- REAPER
DAW with Lua scripting enabled
- ReaImGui
extension (install via ReaPack)
- Copy Hosi_Variator_v1.1.lua to
Scripts folder
- Load
from Actions → Load ReaScript
🎯 Usage Instructions
Step 1: Preparation
- Select
media items on track
- Place
edit cursor at center point (reference position)
- Run
script
Step 2: Configure Parameters
5-Column Interface:
- Parameters:
Enable/disable checkbox
- Amount (0-100%):
Randomization intensity
- Bias (-100/+100):
Randomization direction
- Curve:
Distribution type (Linear/Bell Curve/Exponential)
- Rand:
Quick randomize individual parameter
⚙️ Parameter Details
|
Parameter
|
Range/Unit
|
Description
|
Notes
|
|
Position
|
±2 seconds
|
Horizontal position from cursor
|
Creates stereo width
|
|
Volume
|
±12 dB
|
Audio level
|
>6dB = significant difference
|
|
Pan
|
-1 to +1
|
Stereo panning
|
100% = full stereo field
|
|
Pitch
|
±12 semitones
|
Pitch shift
|
>5 semitones = major change
|
|
Rate
|
0.5x to 1.5x
|
Playback speed
|
Affects item length
|
|
Fade In/Out Length
|
0-0.1 seconds
|
Fade duration
|
Creates smooth texture
|
|
Fade Shapes
|
0-6 index
|
Fade curve shape
|
7 different shapes
|
Curve Types:
- Linear:
Even distribution
- Bell
Curve: Center-focused (natural sounding)
- Exponential:
Low-value biased (dramatic effects)
Bias System:
- 0:
Balanced/neutral
- Positive
(+): Bias toward higher values
- Negative
(-): Bias toward lower values
🎵 Effective Usage Tips
🌿 Natural Sound (Organic)
Goal: Subtle variation without breaking musical
structure
- Position:
30-50% | Volume: 20-40%
- Pan:
50-70% | Pitch: 10-30%
- Rate:
10-20% | Curve: Bell Curve
- Bias:
0 | Applications: Acoustic instruments, vocals
🎭 Dramatic Effects
(Cinematic)
Goal: Strong contrast, impactful results
- Position:
80-100% | Volume: 70-100%
- Pan:
100% | Pitch: 50-100%
- Rate:
40-80% | Curve: Exponential
- Bias:
±30-50 | Applications: Sound FX, impacts, risers
🌊 Ambient/Texture
(Atmospheric)
Goal: Soft background layer, wide spatial feel
- Enable
all Fade parameters
- Volume:
60-80% | Position: 40-60%
- Pitch:
20-40% | Pan: 80-100%
- Rate:
20-40% | Curve: Bell Curve
- Applications:
Pads, atmospheres, textures
🥁 Drums/Percussion
Goal: Natural groove, humanization
- Position:
20-40% (micro-timing)
- Volume:
30-60% (dynamics)
- Pan:
40-80% (kit spread)
- Pitch:
15-35% (tuning variation)
- Rate:
5-15% | Bias: -10 to +10
🎸 Melodic Instruments
Goal: Humanize performance, add expression
- Position:
10-30% | Volume: 25-50%
- Pan:
30-60% | Pitch: 5-20%
- Rate:
5-20% | Curve: Bell Curve
🎤 Vocal Samples
Goal: Choir effects, crowd simulation
- Position:
50-80% | Volume: 40-70%
- Pan:
70-100% | Pitch: 30-60%
- Rate:
10-30%
💾 Preset Management
Save Presets:
- Save
Preset → Enter name → Save
- Auto-saved
to: [REAPER Resource]/Hosi_Variator_Presets.lua
Manage Presets:
- Filter:
Search by name
- Load:
Apply selected preset
- Rename:
Change preset name
- Delete:
Remove preset
Preset Strategy:
- "Subtle":
20-40% across parameters
- "Medium":
40-70% across parameters
- "Extreme":
70-100% across parameters
- "Genre-Specific":
Drums, Ambient, Cinematic, etc.
🎮 Special Features
Shortcuts & Controls:
- Spacebar:
Play/Stop + reset cursor to initial position
- Right-click
sliders: Reset to 0
- "R"
buttons: Randomize individual parameters
Utility Buttons:
- Randomize:
Random all Amount values
- Reset:
Return to default settings
- Mutate:
Execute randomization
- Donate:
PayPal support link
- User
Guide: Online documentation
Auto Features:
- Free
Item Positioning: Automatically enabled
- Vertical
randomization: Automatic (not in GUI)
- Undo
support: Ctrl+Z to revert
- Real-time
preview: Instant feedback
🚀 Advanced Workflow Tips
Layer Technique:
- Base
Layer: Subtle (20-40%)
- Accent
Layer: Medium (50-70%)
- Effect
Layer: Extreme (80-100%)
Safety Practices:
- Backup
projects before use
- Start
small with low Amount values
- Test
with 1 item before batch processing
- Save
working presets regularly
Genre Applications:
- Electronic:
Linear curves, high Position/Pan
- Orchestral:
Bell curves, moderate settings
- Hip-Hop:
Focus on Drums preset, micro-timing
- Ambient:
Full fade parameters, wide stereo
- Rock/Pop:
Balanced approach, musical intervals
Professional Techniques:
- Layered
Randomization: Apply different presets to different layers
- Reference
Mixing: Keep one item untouched as reference
- Gradual
Processing: Build complexity incrementally
- Genre
Templates: Create specific presets for each music style
⚠️ Important Notes
- Script
uses initial cursor position as reference point
- Rate
changes affect item length automatically
- Extreme
values may produce unexpected results
- Console
output can be disabled via ENABLE_CONSOLE_OUTPUT = false
- Free
Item Positioning is automatically enabled on target tracks
- Vertical
position is randomized automatically (hardcoded)
🎯 Best Practices Summary
For Beginners:
- Start
with Subtle preset (20-40% values)
- Focus
on 2-3 parameters initially
- Use Bell
Curve for natural results
- Save
successful configurations as presets
For Advanced Users:
- Combine multiple
curve types for complex results
- Use bias
strategically to guide randomization
- Create genre-specific
preset libraries
- Experiment
with extreme settings for creative effects
Performance Optimization:
- Process
items in small batches for large projects
- Disable
unused parameters to improve performance
- Use
reference tracks to maintain musical context
- Test
settings on duplicate tracks first
Hosi Variator is a powerful tool for sound
design, beat making, post-production, and cinematic
audio, excelling at creating organic variations and humanization
effects that bring digital audio to life!
DOWNLOAD https://youtu.be/J759-Vym_wo
Donate me: https://paypal.me/nkstudio
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