Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Acoustic Model(also: AM)
- An acoustic model is the component of an automatic speech recognition (ASR) system that maps short segments of audio (typically 10–25 ms frames of spectral features) to the linguistic units that produced them — most commonly phonemes or sub-phonetic states. Classical acoustic…
- Automated Speech Recognition(also: ASR, Speech-to-Text, Voice Recognition)
- Technology that converts spoken language into written text using machine learning and signal processing algorithms. In accessibility, ASR is used for real-time captioning, voice control of devices and software, and generating transcripts of audio and video content. While ASR…
- Automatic Speech Recognition (ASR)(also: ASR, Speech-to-Text, Voice Recognition)
- Technology that converts spoken language into written text using computational algorithms and machine learning models. ASR powers auto-captioning features in video conferencing, media players, and assistive devices. While ASR has improved significantly, its accuracy is affected…
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