Disable bell in MacVim

Question

I know this topic has been asked multiple times. But I don't seem to be able to disable the acoustic bell in MacVim. What I have in my .vimrc:

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set noerrorbells 
set novisualbell
set t_vb=

Am I missing anything?

Answer 1

This should be the missing piece:

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autocmd! GUIEnter * set vb t_vb=

Answer 2

For anyone that for some reason couldn't make this work.

set vb t_vb= " no visual bell & flash

did the job for me.