PowerShell/Scripts/convert-txt2wav.ps1

<#
.SYNTAX       convert-txt2wav.ps1 [<text>] [<wav-file>]
.DESCRIPTION  converts the given text to a .WAV audio file
.LINK         https://github.com/fleschutz/PowerShell
.NOTES        Author: Markus Fleschutz / License: CC0
#>

param($Text = "", $WavFile = "")
if ($Text -eq "") { $Text = read-host "Enter text to speak" }
if ($WavFile -eq "") { $WavFile = read-host "Enter .WAV file to save to" }

try {
	Add-Type -AssemblyName System.Speech
	$SpeechSynthesizer = New-Object System.Speech.Synthesis.SpeechSynthesizer
	$SpeechSynthesizer.SetOutputToWaveFile($tWavFile)
	$SpeechSynthesizer.Speak($Text)
	$SpeechSynthesizer.Dispose()
	exit 0
} catch {
	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}