Abstract: This study focuses on design and implementation of Text to Speech (TTS) system, for converting English text into speech signal. It generates speech from the phonetic transcripts of text. It comprises of digitization and text-to-speech generation. The objective of Text to Speech Interface for a Digital Library (TT SIDL) is to store the information of the book in the digital format. Then, a text to speech system would enable to access the digital content of text and produce its corresponding voice. It helps to illiterate and vision-impaired people, for hearing and quick understanding of the contents of the book. This system involves various processes like text-normalization subsuming sentence segmentation and normalization of non-standard words, statistical Part-Of-Speech tagging (POS), grapheme-to-phoneme conversion and prosodic analysis. Subsequently, the system allows the user to select the required text and generates the speech, which has good quality in naturalness and intelligibility.