Open the NVDA menu. (NVDA key + N)
Go to preferences (P)>Punctuation/Symbol Pronunciation (P).
Press ALT+F to move to the "filter by" field.
Type the symbol you want to change. In this case (#).
Press ALT+R to move to the "Replacement" field.
Type what you want NVDA to say when it reads this symbol. In this case "sharp".
Press the Enter Key.

 

Hope this helps.

Not in front of my windows computer to confirm, but flipping through the NVDA docs, I found this:

"Besides the NVDA Settings dialog, The Preferences sub-menu of the NVDA Menu contains...
$1. This dialog allows you to change the way punctuation and other symbols are pronounced...To change a symbol, first select it in the Symbols list. You can filter the symbols by entering the symbol or a part of the symbol's replacement into the Filter by edit box. The Replacement field allows you to change the text that should be spoken in place of this symbol."

Yeah if you just want it for the word C# I would add it to the speech dictionary instead.


NVDA menu, preferences, speech dictionaries, default dictionary, add.

Then type "C#" into the pattern field, followed by "C sharp" into the replacement field.

I would also keep that capitalization checkbox unchecked and set the type to whole word.


So this basically tells NVDA that any time it sees C# with spaces around it, and regardless of lower or upper case, it should instead say C Sharp.

In the symbol and pronunciation thingie in settings, but it will say sharp no matter where it pops up. If you want it to be more context sensitive, a regex in the dictionary would do the job.

Isn't there a pronouncement dictionary thing? Or is that just jaws.

I'm not sure if that is something you can do, but I will ask around