JuceSamplerAudioPlugin

KO | EN

gitlite — search

#javascript #python #hacktoberfest #react #ai #typescript #llm #go #golang #android #machine-learning #rust #deep-learning #linux

JuceSamplerAudioPlugin

(★ 32)

This is a foundational audio sampler plugin with a custom UI created with C++ and the JUCE Framework

JuceSamplerAudioPlugin 최신버젼 다운로드

최종 버전 다운로드 (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# JUCE Sampler Audio Plugin

A simple but functional sampler plugin built with JUCE 8.0.8, featuring chromatic sampling across multiple octaves with decay and reverb controls.

## Features

- 8 chromatic samples (C5 through C6) mapped across the full MIDI range
- Adjustable decay envelope
- Built-in reverb effect
- Custom GUI with filmstrip knobs
- VST3, AU, and Standalone formats

## Directory Structure

- `sources/` - Source files (.h and .cpp)
- `assets/` - WAV samples, PNG images, and TTF fonts
- `build/` - Generated build files (not in git)

## Build Instructions

### Prerequisites

- CMake 3.22 or higher
- C++20 compatible compiler
- Xcode (macOS) or Visual Studio 2022 (Windows)

### macOS

```bash
# Debug build (native architecture only)
cmake -B build -G Xcode

# Release build (universal binary: Intel + Apple Silicon)
cmake -B build -G Xcode -D"CMAKE_OSX_ARCHITECTURES=arm64;x86_64"

# Build from command line
cmake --build build --config Release
```

After building, plugins will be automatically copied to:
- AU: `~/Library/Audio/Plug-Ins/Components/`
- VST3: `~/Library/Audio/Plug-Ins/VST3/`
- Standalone: `build/Sampler_artefacts/`

### Windows

```bash
# Generate Visual Studio project
cmake -B build -G "Visual Studio 17 2022"

# Build from command line
cmake --build build --config Release
```

Open `build/Sampler.sln` in Visual Studio to build and debug.

### First Build Notes

- After running CMake for the first time, generated files like `JuceHeader.h` and `BinaryData.h` may appear in red in your IDE
- These files are created during the build process
- After the first successful build, they will be accessible
- If you add/remove/rename source files, you need to re-run CMake

## Parameters

### Decay (0-100%)

Controls the envelope decay time of the sampler voices.

- **Range:** 0% to 100%
- **Default:** 0%
- **Behavior:** Uses a non-linear (squared) curve to provide finer control at lower values
  - 0% = 0.05s decay time (very short)
  - 100% = 1.0s decay time (sustained)
- **Attack:** Fixed at 0.0s (instant)
- **Release:** Fixed at 0.05s

### Reverb (0-100%)

Controls the reverb room size.

- **Range:** 0% to 100%
- **Default:** 50%
- **Behavior:**
  - Room size scales linearly with percentage
  - Damping: Fixed at 0.5
  - Wet level: Fixed at 0.33
  - Dry level: Fixed at 0.4
- **Note:** Reverb is always active in the signal chain

## MIDI Note Mapping

The plugin uses 8 chromatic samples (C5-C6) distributed across the full MIDI range. Each sample covers multiple keys to create a chromatic scale:

| Sample | Root Note | MIDI Notes Covered |
|--------|-----------|-------------------|
| **C5** | 72 (C5) | 24, 25, 36, 37, 48, 49, 60, 61, 72, 73 (C1-C#1, C2-C#2, C3-C#3, C4-C#4, C5-C#5) |
| **D5** | 74 (D5) | 26, 27, 38, 39, 50, 51, 62, 63, 74, 75, 86, 87, 98, 99 (D1-D#1, D2-D#2, D3-D#3, D4-D#4, D5-D#5, D6-D#6, D7-D#7) |
| **E5** | 76 (E5) | 28, 40, 52, 64, 76, 88, 100 (E1, E2, E3, E4, E5, E6, E7) |
| **F5** | 77 (F5) | 29, 30, 41, 42, 53, 54, 65, 66, 77, 78, 89, 90, 101, 102 (F1-F#1, F2-F#2, F3-F#3, F4-F#4, F5-F#5, F6-F#6, F7-F#7) |
| **G5** | 79 (G5) | 31, 32, 43, 44, 55, 56, 67, 68, 79, 80, 91, 92, 103, 104 (G1-G#1, G2-G#2, G3-G#3, G4-G#4, G5-G#5, G6-G#6, G7-G#7) |
| **A5** | 81 (A5) | 21, 22, 33, 34, 45, 46, 57, 58, 69, 70, 81, 82, 93, 94, 105, 106 (A0-A#0, A1-A#1, A2-A#2, A3-A#3, A4-A#4, A5-A#5, A6-A#6, A7-A#7) |
| **B5** | 83 (B5) | 23, 35, 47, 59, 71, 83, 95, 107 (B0, B1, B2, B3, B4, B5, B6, B7) |
| **C6** | 84 (C6) | 84, 85, 96, 97, 108 (C6-C#6, C7-C#7, C8) |

**Note:** JUCE's sampler engine automatically pitch-shifts each sample to match the played note, using the root note as the reference pitch.

## Technical Details

### Audio Processing

- **Polyphony:** 8 voices
- **Voice Management:** Standard JUCE voice stealing when polyphony limit is reached
- **Stereo Processing:** Stereo output only (mono not currently supported)
- **Sample Format:** 16-bit WAV files included as binary data

### CMake Configuration

This project uses CMake instead of Projucer:

- **CPM:** Downloads JUCE automatically (no submodules needed)
- **JUCE Version:** 8.0.8
- **Important flags in CMakeLists.txt:**
  - `IS_SYNTH TRUE` - Marks plugin as an instrument
  - `NEEDS_MIDI_INPUT TRUE` - Enables MIDI input
  - `CMAKE_MSVC_RUNTIME_LIBRARY` - Links with static C++ library on Windows
  - PDB/dSYM generation enabled for release builds (allows crash log symbolication)
- **Binary Data:** WAV files, PNG images, and TTF fonts are embedded in the plugin binary via `juce_add_binary_data()`

### Assets

**Samples:**
- WAV files are embedded as binary data in the plugin executable
- For projects with many or very large samples, on-demand loading would be required (more complex)
- Current samples have no silence at start/end and are normalized to similar loudness
- Single velocity layer (no velocity sensitivity)
- Note: Finder/Explorer may sort `a5.wav` before `c5.wav` (alphabetical, not musical order)

**Images and Fonts:**
- Background image and Inter fonts are embedded as binary data
- Plugin is fully self-contained with no external file dependencies at runtime
- All artwork is rendered at 2x resolution:
  - Background: 1376×1032 pixels (displayed at 688×516)
  - Knob filmstrip: 152×132 pixels per frame, 129 frames total
  - 2x assets ensure sharpness on Retina/HiDPI displays
- Inter font family is licensed under SIL Open Font License (royalty-free distribution)

### Code Structure Notes

- Simplified `PluginProcessor` implementation (not using standard JUCE/Projucer template)
- Stereo-only output (see `isBusesLayoutSupported()`)
- Mono support could be added as `juce::Synthesiser` already supports it

## Development Notes

- The `**/build` folder is in `.gitignore` and won't be committed
- When adding/removing/renaming source files, update `target_sources` in `CMakeLists.txt` and re-run CMake
- Explicit file listing (vs. automatic discovery) provides better control and clarity

## License

Check individual asset licenses:
- Inter fonts: SIL Open Font License
- JUCE: GPL/Commercial (see JUCE licensing for distribution)

JuceSamplerAudioPlugin

JuceSamplerAudioPlugin 최신버젼 다운로드

오늘의 추천 프로젝트

Was this content helpful?

Recent Feedback

JuceSamplerAudioPlugin

JuceSamplerAudioPlugin 최신버젼 다운로드

오늘의 추천 프로젝트

Was this content helpful?

Recent Feedback

Download README