Audio feedback for context switches

[equalsraf]

Somethigs are easy enough to do, like buffer switches with auto commands

function SayFilename()
        let fname = expand('%')
        if fname == ''
                call SPDSay('No file')
        else
                call SPDSay(fname)
        endif
endfunction

" Say file name on buf switch
au BufEnter * call SayFilename()

Tab switches are doable too, but I don't find them that useful.

Note: spd-say usually cancels whatever is being spoken at the moment. Too many events firing at once might turn into gibberish (unless we wait synchronously).