The play audio node was working up until yesterday (7/13/21) and now it's broken. I haven't updated Node Red, the Play Audio node nor Chrome. Tried it in Edge and still no audio. Audio works on the PC. Tried my laptop, same issue. Tried a different voice....nada....
I should add that at times when I am over-clicking the "Speak" button (doing too much too fast) there can be a significant delay. I suspect this is more in my browsers TTS system than a NR issue.
So just an update for everybody on this topic. Here are the things I did to bring it back to life. I have no idea which one of these actually worked, but it's working.
I ended up going into Chrome and resetting the browser to it's default settings, clearing the cache and history and restarting the computer and that did it.
I also restarted the Pi for good measure and deleted all my instances of Play Audio, and uninstalled the node from the pallet. Restarted the Pi and then re-installed and put the Play Audio back in my flows.
I also disabled all my extentions. Once I had it working, I enabled them one by one to make sure there wasn't any conflicts.
Hope one of these works for someone if they have the same issues.