What does speech recognition do?

Speech recognition is a technology that focuses on converting spoken language into text. It captures audio signals, analyzes them to identify phonemes (the distinct units of sound in speech), and then maps these phonemes to corresponding text tokens, effectively enabling the translation of spoken words into readable text. This process involves several steps, including sound wave analysis, feature extraction, and pattern recognition, which are core components of how speech recognition systems operate.

Other options do not accurately describe the function of speech recognition. For instance, converting text to images relates to a completely different field involving visual data representation and is not part of the speech recognition process. Evaluating the quality of audio recordings pertains to sound engineering or quality assurance, but it does not involve the conversion of speech to text. Lastly, while transcribing video content into written format may seem related, it generally involves additional components such as video processing and synchronization, and it is not the primary function of speech recognition technology itself.