The text to speech technology has achieved significant progress during the past decade and is an active area of research and development in providing different human–computer interactive systems. Even though a number of speech synthesis models are available for different languages focusing on the domain requirements with many motive applications, a source of information on current trends in Indian language speech synthesis is unavailable till date making it difficult for the beginners to initiate research for the development of TTS systems for the low-resourced languages. This paper provides a review of the contributions made by different researchers in the field of Indian language speech synthesis along with a study on the Indian language characteristics and the associated challenges in designing TTS systems. A set of available applications and tools results out of different projects undertaken by different organizations along with a set of possible future developments are also discussed to provide a single reference to an important strand of research in speech synthesis which may benefit anyone interested to initiate research in this area.

中文翻译：

---

印度语言语音合成技术调查

文本转语音技术在过去十年中取得了重大进展，是提供不同人机交互系统的研究和开发的活跃领域。尽管有许多语音合成模型可用于不同的语言，专注于具有许多动机应用的领域需求，但迄今为止无法获得有关印度语言语音合成当前趋势的信息来源，这使得初学者难以开始研究为低资源语言开发 TTS 系统。本文回顾了不同研究人员在印度语言语音合成领域的贡献，以及对印度语言特征和设计 TTS 系统的相关挑战的研究。