# Voicemeeter-JNA-Interface

**Repository Path**: gitzzz/Voicemeeter-JNA-Interface

## Basic Information

- **Project Name**: Voicemeeter-JNA-Interface
- **Description**: An interface to control Voicemeeter via Java using JNA
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-02-28
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## Voicemeeter Interface for Java using JNA

This is an interface written with JNA to control Voicemeeter (and Voicemeeter 
Banana) via it's API. The .dll file itself comes pre-installed with Voicemeeter,
however the files I based this interface off of come with the 
VoicemeeterRemoteAPIPack (version 6). The RemoteAPIPack can be downloaded from the 
[Voicemeeter API forum page](https://forum.vb-audio.com/viewtopic.php?f=8&t=346&sid=74a4f83ebfdb023cb2bf544f7f80827d). 

#### Examples

I created this in order to automate the changing of certain values under certain 
conditions. Specifically, I wanted to change the strip compression and gain values
when I had a certain program open, and return the values to default when I closed the
program. Here is an example of such a program using this interface:

```java
import java.util.Arrays;

public class ProgramController {
    private final String programName = "program.exe";
    private final float strip0GainDefault = 0.0f;
    private final float strip0CompDefault = 0.0f;
    private final float strip0GainProgramOpen = -6.0f;
    private final float strip0CompProgramOpen = 4.5f;

    private boolean programOpen = false;

    public static void main(String[] args) {
        new ProgramController().init();
    }

    private void init() {
        Voicemeeter.init(true);

        while (true) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
                System.exit(1);
            }

            if (Arrays.asList(getOpenPrograms()).contains(programName))
                switchToProgramOpen();
            else
                switchToProgramClosed();
        }
    }

    private void switchToProgramOpen() {
        if (!programOpen) {
            programOpen = true;

            Voicemeeter.setParameterFloat("Strip[0].gain", strip0GainProgramOpen);
            Voicemeeter.setParameterFloat("Strip[0].comp", strip0CompProgramOpen);
        }
    }

    private void switchToProgramClosed() {
        if (programOpen) {
            programOpen = false;

            Voicemeeter.setParameterFloat("Strip[0].gain", strip0GainDefault);
            Voicemeeter.setParameterFloat("Strip[0].comp", strip0CompDefault);
        }
    }

    private String[] getOpenPrograms() {
        // Return array of program names. Implementation will differ between
        // different operating systems.
    }
}
```