Speech Processing: From Voice Assistants to Transcripts
Speech Processing: From Voice Assistants to Transcripts Speech processing turns spoken language into text and actions. It powers voice assistants, call centers, captions, and searchable transcripts. The goal is clear, usable language across devices and situations. The pipeline has several stages. First, capture and pre-processing: a microphone records sound, and software reduces noise and normalizes levels. Next, feature extraction: the audio is turned into compact data that a computer can study. Then the acoustic model links those features to sounds or phonemes. A language model helps predict word sequences so the output sounds natural. Finally, a decoder builds sentences with punctuation, and a post-processing step may flag uncertain parts for review. ...