Waveform Model of Vowels - Blog

Analysis of over 25,000 raw complex waveforms of speech have been analyzed. The recordings were made in a number of conditions including the following; produced in noise, under cognitive load, while intoxicated by alcohol, in a centrifuge with 2 to 6 G's of force, normally produced, whispered, Spanish and Hindi, and over 3,800 recordings of impaired speech (due to concussion). Below are some of the publicly presented results, and commentary that can only come from a working explanation of vowels.

Public Presentations and Publications

1 minute video describing the Waveform Model
Posted February 2019
The Audacious Project by Ted Talks asked for a one minute unrehearsed video describing an audacious innovation. It was too late to be viewed by their team, but it is worthy of being posted here.
The Video
Speech Technology Magazine
Published Fall 2018 - Letters to the Editor
The Price of Imperfection
In Speech Technology’s Winter 2018 issue, several articles discussed billions in potential and lamented the lack of perfection restraining that potential. This was not new...
Full article
Speech Technology Magazine
Posted Sep 21, 2016
Waveform Compiles Speech Database for Concussion Diagnoses
Waveform is working with Methodist Sports Medicine on speech technologies to help diagnose concussions.
Full article
 
Speech Technology Magazine
Posted Jun 2, 2014 - By Leonard Klie
Speech Is Helping to Identify Concussions
Waveform Communications is developing a speech recognition product that compares how people produce vowel sounds to zero in on brain injuries.
Full article
 
Acoustical Society of America
Presented 2014
Horner, T.G. and Stokes, M.A. (2014), “Potential sports concussion identification using acoustic-phonetic analysis of vowel productions,” presented at the 168th meeting: Acoustical Society of America: Indianapolis, IN.
Abstract and citation
 
Acoustical Society of America
Presented 2014
Michael A. Stokes (2014), "99.8 percent accuracy achieved on Peterson and Barney (1952) acoustic measurements,” presented at the 168th meeting: Acoustical Society of America: Indianapolis, IN.
Abstract and citation
 
Speech Technology Magazine
Posted Jul 24, 2013
Waveform Enhances Vowel Recognition in Speech Apps
Waveform New model improves accuracy of speech recognition
Full article
 
Indianapolis Business Journal
November 3, 2012
Speech recognition technology firm gets cash infusion
Full article
 
Purdue Research Park
Posted October 25, 2012
Speech recognition startup earns funding, enters international R and D collaboration
Full article
 
Purdue Research Park
Posted June 5, 2012
Algorithm, technology being developed to improve speech recognition products
Full article
 
Kauffman Foundation
Posted May 7, 2013 - By Claire Topalian
Named one of the top 50 start-ups in the world in 2011 by the GEW 50 (established by the Kauffman Foundation), they asked for my story.
The Story of a Startup 20 Years in The Making …
Full article
 
Acoustical Society of America
Presented 2011
Michael A. Stokes (2011), "The waveform model of vowel perception and production," presented at the 161st meeting: Acoustical Society of America: Seattle, WA.
Abstract and citation
 
Universal-Publishers
Published 2009
Stokes, M.A. (2009). The waveform model of vowel perception and production. Boca Raton, FL: Universal-Publishers.
Abstract and citation
 
Acoustical Society of America
Presented 2002
Michael A. Stokes (2002), "Talker Identification from Analysis of Raw Complex Waveforms," presented at the 143rd meeting: Acoustical Society of America.
Abstract and citation
 
Acoustical Society of America
Presented 2001
Michael A. Stokes (2001), "Male and female vowels identified by visual inspection of raw complex waveforms," presented at the 141st meeting: Acoustical Society of America.
Abstract and citation
 
Acoustical Society of America
Presented 1996
Michael A. Stokes (1996), "Identification of vowels based on visual cues within raw complex waveforms," presented at the 131st meeting: Acoustical Society of America.
Abstract and citation
 
Alcohol Clinical Experimental Research
Published 1989
David B. Pisoni and Christopher S. Martin (1989), "Effects of Alcohol on the Acoustic-Phonetic Properties of Speech: Perceptual and Acoustic Analyses", Alcohol Clin Exp Res. 1989 Aug; 13(4): 577–587. Michael Stokes acknowledged as the source of data and editorial assistance.
Abstract and citation
 
Acoustical Society of America
Presented 1989
W. Van Summers, David B. Pisoni, and Michael A. Stokes (1989), "Effects of cognitive workload on speech production," presented at the 117th meeting: Acoustical Society of America.
Abstract and citation
 
Acoustical Society of America
Published 1988
W. Van Summers, David B. Pisoni, Robert H. Bernacki, Robert I. Pedlow, and Michael A. Stokes (1988), "Effects of noise on speech production: Acoustic and Perceptual analysis," Journal of the Acoustical Society of America, 84, 917-928.
Abstract and citation