Voice Technologies encompass a suite of computer science disciplines focused on enabling machines to understand, process, and generate human speech. Key components include Automatic Speech Recognition (ASR), which converts spoken language into text, and Text-to-Speech (TTS), which synthesizes artificial speech from text. These systems leverage complex algorithms from artificial intelligence, machine learning, and natural language processing to power a wide range of applications. Prominently featured in mobile technologies, they are the foundation for virtual assistants like Siri and Google Assistant, hands-free device control, and interactive voice response (IVR) systems, fundamentally changing how users interact with their devices.