Hmmm. When I run the "redis-cli.....", I get- "(interger) 0" displayed. Is that a good thing or a bad thing?
Then when I run the "refresh_ao" I get "command not found".
My guess is the refresh_ao error is a path related issue? Which folder does this command reside?
I'm using a HiFiBerry Dac+. It's working except the hardware volume control fails to work. Software enabled works, but it effects the sound quality. I'm hoping if I can get your command to work, it'll fix this.