Fact · Speech recognition
1952year
In 1952, Davis, Biddulph and Balashek of Bell Laboratories built a system that recognized isolated spoken digits from a single speaker.
Checked against its source on October 16, 2026
In the source's own words
“In 1952, Davis, Biddulph, and Balashek of Bell ... built a system for isolated digit recognition for a single speaker”
Automatic Speech Recognition: A Brief History of the Technology Development, B. H. Juang and Lawrence R. Rabiner, Elsevier Encyclopedia of Language and Linguistics (author copy, UC Santa Barbara), 2005, Section on early systems.
Open the original- What it measures
- One of the first working speech recognizers. It recognized ten digits, not free speech.
- What it does not show
- A historical milestone, far from dictation of ordinary sentences.
Source
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