powershellがしゃべるやつ。Ctrl+Cで終わればよいだろう。

Enter-TTS-Console.ps1

param([Int]$volume, [string]$voice)
#  & .\Enter-TTS-Console.ps1 -voice 'Microsoft Zira Desktop'
# in cmd.exe: powershell .\Enter-TTS-Console.ps1 -voice 'Microsoft` Zira` Desktop'

Add-Type -AssemblyName System.speech
$speak = New-Object System.Speech.Synthesis.SpeechSynthesizer
if ($volume) {
    $speak.Volume = $volume
}
if ($voice) {
    $speak.SelectVoice($voice)    
}
function Out-Speak {
    param (
        [Parameter( ValueFromPipeline = $true)]
        [string]$words
    )
    process {
        if ($words) {
            $speak.Speak($words) 
        }
    }
}

if ($MyInvocation.InvocationName -ne ".") {
    "Voice:$($speak.Voice.Name),Volume:$($speak.Volume)" | ForEach-Object { $_ | Out-Host; $_ } | Out-Speak 
    try {
        while (1) {
            Read-Host | Out-Speak
        }
    }
    finally { }
}