The say Command is not Working in High Sierra I recently upgraded my MacBook to High Sierra (from El Cap).  It appears I can no longer use the say command.  When I enter a simple command

$ say -v "Alex" "Test"
[...hangs...]

$ sudo say -v "Alex" "Test"
Password:
[...hangs...]


My laptop hangs.  Is this a known issue and are there known fixes?  If not, does anyone know what next steps I might take in diagnosing this problem?
Bug?

I could tell something was wrong because the Speech section of the Accessability pane in System Preferences was stuck loading voices and the voice sample play button also did not work. I killed some speech and audio-related processes with some luck.

I was also able to reproduce the hang by using the -o option of the terminal say command.

Workaround without reboot:

Try killing speechsynthesisd after finding it with

ps ax |grep speechsynthesisd


or just kill it this way:

kill `pgrep speechsynthesisd`