My Macbook Pro "Speech-to-text" voice went cuckoo?

I'm going cuckoo here too...

If I highlight a section of text on screen, and use Option-Escape, the voice is the correct voice (Siri - Female) that I want and have selected. If I highlight a section of text on the screen and use double-tap/right click -> Speech -> Start Speaking, then it uses man voice (Alex)?? I've been through every setting in System Preferences and searched online for help. Though I found a similar post back in October, 2019 asking the same question, one dude suggested us to restart the computer, sadly it did not worked.

I am sure I am not the only one who agitated by this issue, can we get some help please? I am using 2020 MacBook Pro with latest Catalina build.

Thank you