Hey Caba, if you’re still having issues with your mic, you should check out this thread: [Catalina] Voice Chat not working in Heroes of the Storm - #8 by Zentgraf-1420
Long story short, you may need to manually open up the mic permissions for Heroes by going into Terminal and pasting the code thats in the thread. Not sure it will work with a different directory, but worth a shot. Note that you can’t just copy the code directly from the forum post - I had to copy it into textedit and replace all the apostrophes