Laryngograph as a tool in diagnosis of voice and speech process disorders

Abstract

The electroglottography method is an instrumental analysis using a device called Laryngograph, which is presented in a practical application in diagnosis issues of the speech signal for people with voice disorders. In this paper possibilities of this device are estimated. The visualization of the speech signal obtained with the use of Laryngograph allows detecting its acoustically and phonetically most important features and presenting them in a graphical form. The analysis process performed with the use of a computer and the presented computer attachment is easier, faster, and ensures higher quality than other methods. Computer voice recording enables not only visualization but also objective assessment and its repetitions. The aim of the research was the assessment and evaluation of the level of oral development of children with hearing impairments. The obtained results and following practical conclusions can serve as guidelines in clinical and speech therapy applications in voice rehabilitation and communication development.