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Development of a High Quality Text to Speech System for LAO

Text-to-speech, or speech synthesis, transforms text input to audio signal. It has a variety of applications and is a popular research area in the field of natural language and speech processing. However, many languages in the world have not been carefully researched. This paper presents the first study about high-quality Lao language speech synthesis; despite not receiving much attention, the language has a lot of future potential with applications in areas such as customer care, reading news, GPS navigation, etc. The database has been designed, processed, and used to build an end-to-end Lao text-to-speech model. Many tests are conducted and evaluated by native speakers, then chosen as the best model to demonstrate the potential of the proposed scheme to produce a high-quality Lao language synthesis.