Which feature allows IBM Watson services to understand and process human language?

The feature that enables IBM Watson services to understand and process human language is Natural Language Understanding. This capability allows Watson to analyze and interpret text data by identifying the sentiments, keywords, entities, and concepts within that text. It essentially bridges the gap between human communication and machine understanding, enabling Watson to perform tasks such as sentiment analysis, emotion detection, and intent recognition.

Natural Language Understanding employs advanced natural language processing (NLP) techniques to extract meaningful information from unstructured text, which is fundamental for applications such as chatbots, sentiment analysis tools, and customer feedback systems. This feature plays a crucial role in translating human language into a format that computers can work with efficiently.

The other features listed primarily revolve around audio data processing or visual understanding rather than text interpretation. Text-to-Speech and Speech-to-Text focus on converting text into spoken words and vice versa, while Computer Vision involves processing and interpreting visual data. Thus, they do not relate directly to understanding human language in written or conversational contexts.