WEB to OGG transformer

$DirectoryIn = 'd:\wems'
$DirectoryOut = 'd:\Wems\Convs'
$Path_ww2ogg = 'D:\wems\ww2ogg.exe'
$Path_revorb = 'D:\wems\revorb.exe'
$Path_codebooks = 'D:\wems\packed_codebooks.bin'
$files = @( Get-ChildItem -Path $DirectoryIn -Filter '*.wem' -Recurse -File )
$counter = 0;
ForEach ($file in $files) {
    $counter++
    $local:fileFullName = $file.FullName
    $local:fileShortName = $file.Name -replace '\.wem$',''
    $local:fileNewPath = Join-Path -Path $DirectoryOut -ChildPath $( $local:fileShortName + '.ogg' )
    Start-Process -FilePath $Path_ww2ogg -ArgumentList @( $local:fileFullName,'-o',$local:fileNewPath, '--pcb',$Path_codebooks  ) -Wait -WindowStyle Hidden | Out-Null
    Start-Process -FilePath $Path_revorb -ArgumentList @($local:fileNewPath ) -Wait -WindowStyle Hidden | Out-Null

    Write-Host -ForegroundColor Yellow "$($counter ) of $($files.Count)"
}