Connect Web Captioner Webhook in TTS Voice Wizard

Go to https://webcaptioner.com/captioner

Settings (bottom right) > Channels > Webhook

Set 'http://localhost:8080/' as the Webhook URL and experiment with different chunking values (I recommend a large value so it only sends when you finish talking).

Now you're all set to click 'Start Captioning' in Web Captioner

Note that you will have to use a separate option for TTS such as Azure, System Speech or FonixTalk