OwnAudioVST3

A cross-platform C# wrapper for VST3 plugins with built-in visual editor support using Avalonia UI.

Features

• VST3 Plugin Loading - Load and control VST3 instruments and effects
• Cross-Platform Editors - Display plugin UIs on Windows, macOS, and Linux
• Parameter Control - Get/set plugin parameters programmatically
• MIDI Support - Send MIDI events to instruments
• Audio Processing - Process audio buffers in real-time
• Native Performance - Uses native C++ library for optimal performance

Installation

Install via NuGet Package Manager:

dotnet add package OwnVst3Host

Or via Package Manager Console:

Install-Package OwnVst3Host

Quick Start

using OwnVST3Host;
using OwnVST3Host.Extensions;

// Load a VST3 plugin
var plugin = new OwnVst3Wrapper();
plugin.LoadPlugin("/path/to/plugin.vst3");
plugin.Initialize(44100, 512);

// Check if plugin has a visual editor
if (plugin.HasEditor())
{
    // Open the editor window
    var editorWindow = plugin.ShowEditor();
    
    // Check if editor is currently open
    bool isOpen = editorWindow.IsEditorActive;
}

// Get plugin information
Console.WriteLine($"Name: {plugin.Name}");
Console.WriteLine($"Vendor: {plugin.Vendor}");
Console.WriteLine($"Type: {(plugin.IsInstrument ? "Instrument" : "Effect")}");

// Process audio
plugin.ProcessAudio(inputBuffer, outputBuffer, sampleCount);

// Clean up
plugin.Dispose();

API Overview

Core Methods

• LoadPlugin(path) - Load a VST3 plugin
• Initialize(sampleRate, bufferSize) - Initialize the audio engine
• ProcessAudio(input, output, samples) - Process audio buffers
• Dispose() - Clean up resources

Editor Support

• HasEditor() - Check if plugin has a visual editor
• ShowEditor() - Open editor in a new window
• ShowEditor(owner) - Open editor as child of owner window
• IsEditorActive - Check if editor is currently open

Parameters

• GetParameterCount() - Get number of parameters
• GetParameterValue(index) - Get parameter value
• SetParameterValue(index, value) - Set parameter value
• GetParameterInfo(index) - Get parameter metadata

MIDI

• SendMidiEvent(status, data1, data2) - Send MIDI message
• IsInstrument - Check if plugin is a MIDI instrument

Platform Support

Platform	Supported	Architecture
Windows	✅	x64, x86, ARM64
macOS	✅	x64, ARM64 (Universal)
Linux	✅	x64, ARM64

Building from Source

# Clone the repository with submodules
git clone --recursive https://github.com/ModernMube/OwnVST3Sharp.git
cd OwnVST3Sharp

# Build the solution
dotnet build OwnVST3Sharp.sln --configuration Release

# Run the demo
dotnet run --project OwnVST3EditorDemo

Project Structure

• OwnVST3Host - Main library with VST3 wrapper and editor support
• OwnVST3EditorDemo - Example application demonstrating usage
• OwnVST3 - Native C++ library (submodule)

Support My Work

If you find this project helpful, consider buying me a coffee!

License

This project is licensed under the MIT License - see the LICENSE.txt file for details.

Acknowledgments

• Built on top of the VST3 SDK
• UI rendering powered by Avalonia UI

Support

For issues, questions, or contributions, please open an issue on GitHub.