Volume of TTS to Google Mini is way lower than normal!

Just got Google Nest Mini and have it all paired up with hubitat. (Thanks to the suggestions from this forum!)

However, the volume of the TTS voice coming from hubitat is super low, i can barely hear it. I have tried setting the volume to 100 and it doesn't seem to do anything.

The volume of my Mini is set at 50% and the sound coming from Mini is lound enough. But voices from Hubitat sounds like 10% or so only. I don't get it.

The only way i can hear the TTS is if i set Mini to volume=80% but when I do, the regular sounds coming from mini are just too loud already.

Im on C-7 latest FW to date. Google Mini also on latest FW. My setting bellow for the TTS even at 100% sounds the same 10% ish on Google Mini (no improvements). Even if I set it to 1 to test it, it still doesnt change the volume. It's like this setting doesn't work at all.

Are you sure the volume change is being honored? What is the volume of the device drive page right after you send the message?

Some discussions here Google Home text to speech issues - #4 by TJones1114