voicemeeter-api-powershell/examples/obs/Vm-Obs-Sync.ps1

[cmdletbinding()]
param()

Import-Module ..\..\lib\Voicemeeter.psm1
Import-Module obs-powershell

function CurrentProgramSceneChanged {
    param([System.Object]$data)
    Write-Host 'Switched to scene', $data.sceneName

    switch ($data.sceneName) {
        'START' { 
            $vmr.strip[0].mute = !$vmr.strip[0].mute
        }
        'BRB' { 
            $vmr.strip[0].gain = -8.3
        }
        'END' { 
            $vmr.strip[0].mono = $true
        }
        'LIVE' { 
            $vmr.strip[0].color_x = 0.3
        }
        default { 'Expected START, BRB, END or LIVE scene' | Write-Warning; return }
    }
}

function ExitStarted {
    param([System.Object]$data)
    'OBS shutdown has begun!' | Write-Host
    break
}

function eventHandler($data) {
    if (Get-Command $data.eventType -ErrorAction SilentlyContinue) {
        & $data.eventType -data $data.eventData
    }
}

function ConnFromFile {
    $configpath = Join-Path $PSScriptRoot 'config.psd1'
    return Import-PowerShellDataFile -Path $configpath
}

function main {
    $vmr = Connect-Voicemeeter -Kind 'basic'

    $conn = ConnFromFile
    $job = Watch-OBS -WebSocketURI "ws://$($conn.host):$($conn.port)" -WebSocketToken $conn.password

    try {
        while ($true) {
            Receive-Job -Job $job | ForEach-Object {
                $data = $_.MessageData

                if ($data.op -eq 5) {
                    eventHandler($data.d)
                }
            }
        }
    }
    finally { 
        Disconnect-OBS 
        Disconnect-Voicemeeter
    }    
}

main