Just sharing an additional understanding:
Minecraft has no sound on Raspberry pi and that is normal. Because this game was ported to the platform by goodwilling people and support stopped, and they did not port all.
So that it isn’t normal then that the game is silent : steps, tnt, falling, whatever will make no sound. And piper game is made on this Minecraft for Pi.
What I am not clear about is about the piper videos sound… I have to replay Mars and see if now I get sound or not…
Also there are some guys having added sound to Minecraft Pi, and I plan to try that, since that should benefit piper game.
And the addition of a USB keyboard should not mess up the sound. I have that and get sounds on other games like Tetris on the raspberry.
Let’s stay tuned. Piper team should help a little bit as well to confirm where we should expect sound or not in the piper game itself