Adrian Fourcin
Adrian Fourcin was an engineer and speech scientist who developed tools for measuring voice and analyzing speech. He earned an engineering degree at Northampton Polytechnic and completed a 1953 PhD at Imperial College, then moved from electronics research into UCL academic leadership. With John West, he developed the guard-ring Laryngograph, whose measurements served research, speech forensics and vocal rehabilitation; he also coauthored a speech corpus and a real-time analysis workstation. His later work addressed voice quality and vocal timing, and he held the title Professor Emeritus of Experimental Phonetics at UCL when he died in 2026.
Timeline
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1927
Born in Primrose Hill
Adrian John Fourcin is born in Primrose Hill, London, on 30 August 1927.
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By 1953
Engineering speech research
He earns a BSc in Engineering at Northampton Polytechnic and completes a PhD on speech-channel capacity reduction at Imperial College in 1953.
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1955–1960
Radio and television research
Between 1955 and 1960, he works on radio transmitter calibration and new test methods for television at General Electrical Company.
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1960s–1971
The guard-ring Laryngograph
With John West, he develops the guard-ring Laryngograph in the early 1960s to measure vocal-fold frequency and contact. Demand for the device leads to the Laryngograph company in 1971; it supports acoustic research, speech forensics and vocal rehabilitation.
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1961
Leading UCL’s speech lab
In 1961, he becomes Head of UCL’s Phonetics/Speech Sciences Laboratory and later holds the chair of Experimental Phonetics.
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1994–1999
Speech corpora and displays
In 1994, he coauthors the Translanguage English Database (TED), a corpus of 224 recorded oral presentations at Eurospeech93 totaling about 75 hours. In 1999, he coauthors work on Lx Speech Studio, a PC workstation for real-time analysis, display and measurement of speech pattern elements.
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2003–2024
Voice quality and a research award
In 2003, he presents a tutorial on phonetics and voice-quality measurement at VOQUAL; the Voice Foundation awards him its Quintana Research Award in 2004. In 2009, a symposium on his work features research on electrolaryngographic analysis in singing. His 2024 work is titled ‘Congruent timing in Human, Nightingale, Parotid Wasp and Hawaiian Planthopper vocalisations’.
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2026
Emeritus professor dies
He continues research on speech evolution into the final months of his life and dies in 2026 as Professor Emeritus of Experimental Phonetics at UCL.
Career
- 1961–2026University College LondonHead of Phonetics/Speech Sciences Laboratory, Professor Emeritus of Experimental Phonetics
- 1955–1960General Electrical Company
Education
- 1953Imperial College LondonPhD
- Northampton PolytechnicBSc in Engineering
Most-cited works
- First applications of a new laryngograph
- Intonation processing in congenital amusia: discrimination, identification and imitation
- External Electrical Stimulation of the Cochlea: Clinical, Psychophysical, Speech-Perceptual and Histological Findings
- Voice pitch as an aid to lipreading
- Cross-language study of speech-pattern learning
Sources and credits
Photo: We have no published photo of Adrian Fourcin yet. Send us a free-licensed photo.
- OBITUARY: Emeritus Professor Adrian John Fourcin (30/8/1927 - 10/4/2026)
- Professor Adrian Fourcin (1927-2026)
- The translanguage English database (TED)
- Speech pattern element analysis and display - 'Lx Speech Studio'
- ISCA Archive
- Quintana Research Award - THE VOICE FOUNDATION
- Electrolaryngographically revealed aspects of the voice source in singing
- IPA News | International Phonetic Association

