PowerShellで音声読み上げ(SAPI: https://ja.wikipedia.org/wiki/Speech_Application_Programming_Interface)

say.ps1

function say
{
    Param (
        [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$false, Position=1)]
        [String] $Text
    )

    $spVoice= New-Object -ComObject Sapi.Spvoice
    $spVoice.Speak($Text)
}