Phonology for Sindhi Letter-to-Sound Conversion

The Text to Speech (TTS) synthesis technology enables machines to convert text into audible speech and used throughout the world to enhance the accessibility of the information. Letter to sound (LTS) conversion is necessary component of any TTS system and phonological knowledge is essential for LTS conversion. This study deals with the conversion of Sindhi alphabet letters into their appropriate sounds. In this paper, phonology of Sindhi language is focused. For this purpose, some important areas of Sindhi phonology and writing system is reviewed and presented which can be used for Sindhi letter to sound conversion and also for the development of rule based Sindhi TTS synthesis system.