Text-to-Speech (TTS) and Speech-to-Text (STT) are transformative technologies that are increasingly integrated into daily life and various industries, enhancing accessibility and simplifying tasks. TTS converts written text into spoken words, making it useful for the visually impaired and in applications like e-readers and virtual assistants, while STT transcribes spoken language into written text, aiding in dictation and real-time captioning. Both technologies use advanced AI to improve accuracy and naturalness, with TTS focusing on speech synthesis and STT on voice recognition. Despite their advancements, challenges remain, such as achieving natural human-like inflections in TTS and accurately capturing speech in noisy environments for STT. These technologies have widespread applications across sectors like education, healthcare, and customer service, where they enhance user experiences and operational efficiency.