Haha… It’s a version of vi so it must not be usable without customizing the .rc file…
set nolaunchbell is what you’re looking for.
For me:
" exrc for wasavi
" https://github.com/akahuku/wasavi/wiki/All-Options-which-wasavi-recognizes
set ts=4
set sw=4
set ai
set et
set nu
set bellvolume=5
set nolaunchbell
set visualbell
set theme=matrix
map! <C-V> <esc>"*pa