Speech Rate

The speed at which speech is produced, typically measured in words per minute (WPM) or syllables per second. Normal conversational speech ranges from 120-180 WPM, while screen reader users often configure synthetic speech at rates of 300-400 WPM or higher. Speech rate settings in assistive technology directly impact productivity—faster rates allow users to consume more content in less time, though optimal rates vary by individual ability and content complexity.