Pseudo whispering is not only a form of vocal rehabilitation, but also simultaneously provides the basis for learning two other vocal options (ructus voice or speaking with the electronic speech aid). In this process, the patient uses the air that is present in the oral cavity and over-articulates it through the mouth movements.
Voiced vowels (e.g. a, e, i, o, u) are read from the lips. Consonants that produce a rubbing or explosive sound can be understood and heard very well through pseudo whispering (e.g. k, t, p, sh, s). Pseudo whispering can be learned quite quickly and is a very useful form of communication shortly after surgery.