title: How to turn off bell sound in Visual Studio Code?
body: <p>I've got freshly installed Visual Studio Code on OSX with only <a href="https://marketplace.visualstudio.com/items?itemName=hiro-sun.vscode-emacs" rel="noreferrer">Emacs Keymap</a> extension.</p>
  
  <p>When I'm trying to undo (<kbd>ctrl</kbd> + <kbd>/</kbd>) the bell sound occurs.</p>
  
  <p>Any idea how to turn it off with this keybinding or for ever? I did not find any sound related settings in VSC configs.</p>