The article deals with voice rehabilitation from practice of singing voice trainer who works as a voice therapeut. Co-operation between singing-voice trainers and phoniatricians may be valuable for phoniatrics, as the trainers thanks to their methodical skills, can bring about a more suitable way of the patients speaking and singing phonation. Singing voice professional, trainer can play an important part in the care of voice, including both prevention and re-education in selected types of voice disorders. Four cases are included as documets.Practical testing of the results brought by the author s long-term research into the quality of voice.