allow you to record a message with sound recorder in windows, convert to mp3, upload to an auto-attendant in MSFT Teams; requires VLC

Set-AutoAttendantAudioFile.ps1

function Set-AutoAttendantAudioFile {
    Param (
        $originalAudioFile = "C:\Sound recordings\Recording (8).m4a",
        $autoAttendantName = “Teams Testing”,
        $VLCInstall = 'C:\Program Files\VideoLAN\VLC\vlc.exe'
    )
    
    if (!(Test-Path $VLCInstall)) {
        "Need to install VLC or specify different install directory for VLC.exe"
    }

function ConnectTo-Skype {
    $skypesession = New-CsOnlineSession
    Import-PSSession $skypesession
}

#check if any existing Skype session is broken - if so, remove it, unload the module, and reconnect
$session = Get-PSSession | where name -match "sfb" | where state -eq "broken"
if ($session) {
    Remove-PSSession $session
    get-module | where name -match "tmp" | Remove-Module
    ConnectTo-Skype
} 
elseif (!((Get-Module | Where-Object name -match "tmp").ExportedCommands.'Import-CsOnlineAudioFile'.Name)) {
    ConnectTo-Skype
}

#gotta have VLC installed
function ConvertToMp3( $file, [string] $vlc = 'C:\Program Files\VideoLAN\VLC\vlc.exe') {
#from: https://timvw.be/2010/11/20/convert-aacm4a-files-to-mp3-with-vlc-and-powershell/
#adapted a bit to change the return value and Get-Item of $file      
  PROCESS {            
    $codec = 'mp3';        
    $oldFile = Get-Item $file;

    $newFile = $oldFile.FullName.Replace($oldFile.Extension, ".$codec");
    &"$vlc" -I dummy "$oldFile" ":sout=#transcode{acodec=$codec,vcodec=dummy}:standard{access=file,mux=raw,dst=$newFile}" vlc://quit | out-null;

    return $newfile, ($oldfile.name -replace "\w\w\w$", "mp3")
  }  
}

$outputFile, $fileBaseName = ConvertToMp3 -file $originalAudioFile

$testingAttendant = Get-CsAutoAttendant -NameFilter $autoAttendantName
$content = Get-Content $outputFile -encoding byte -ReadCount 0
$audiofile = Import-CsOnlineAudioFile -FileName $fileBaseName -Content $content -ApplicationId OrgAutoAttendant

$audioFilePrompt = New-CsAutoAttendantPrompt -ActiveType AudioFile -AudioFilePrompt $audiofile -TextToSpeechPrompt "Your call is very important to us. Please select from the following options"

$testingAttendant.DefaultCallFlow.Greetings[0] = $audioFilePrompt

$res = Set-CsAutoAttendant -Instance $testingAttendant

return $res

}