[SOLVED] Change TTS speed in Windows10 with Chrome Browser

I have a Touchscreen with a Windows10 Cube N PC. I use Habpanel on this PC. For TTS i use Hedda with Chrome Browser with habpanel. It works fine. But it is a little to fast for me. How can I change the speed (rate).??? I try the settings in Windows. But in Habpanel it not changed.

Hello, I reply myself.
I have write a Powershell script myself, so i can use the system voice directly, so i can ajust speed and pitch.
It use mosquito MQTT.
So for speech you also dont need browser.
The script is and endless loop.

Add-Type -AssemblyName System.speech
$speak = New-Object System.Speech.Synthesis.SpeechSynthesizer
cd “C:\Program Files (x86)\mosquitto”
do {
$zeile = .\mosquitto_sub.exe -C 1 -h -t openhab/panel/sprache
} until (1 -eq 0)