A workshop was held on the 17th and 18th of February, 1994, in Denver, Colorado to reach
better agreement on purpose and methods of acoustic analysis of voice signals. Sponsorship was by the National Center for Voice and Speech, a research and training center funded by the National Institute on Deafness and Other Communication Disorders, and The Denver Center for the Performing Arts. Topics included definitions and nomenclature in voice analysis, algorithms for extraction of parameters, high fidelity recording of microphone signals, computer file structures, sharing of data bases, and development of test signals.

Vocal Fold Physiology
Edited by Ingo R. Titze, PhD and Ronald C. Scherer

The material in this volume was delivered at the International Conference on the
Physiology and Biophysics of Voice in Iowa City, Iowa, U.S.A., May 7-11, 1983. It was the
third in a series of conferences that was planned in the initial stages by several members of
the Scientific Advisory Board ofthe Voice Foundation. These individuals were Drs. Hirano,
Fujimura, Titze, and Gould. It was felt that a collection of in-depth papers on vocal fold
physiology would require the joint work of representative researchers from around the world,
each having different disciplines and working environments. Dr. Stevens joined the group
of advisors and assumed the important role of becoming one of the co-editors of the first
volume, together with Dr. Hirano. This first volume consisted ofa collection ofpapers given
in Kurume, Japan in 1980, and was published by Tokyo University Press. The second volume,
edited by Drs. Bless and Abbs and published by College-Hill Press, describes the proceedings
of the first U.S. conference held in Madison, Wisconsin, in 1981. The fourth conference is
now scheduled for New Haven, Connecticut, and will be under the direction ofDrs. Katherine
Hanis and Thomas Baer.

Workshop on Acoustic Voice Analysis
Proceedings Edited by D. Wong

The Proceedings consist of written versions of topics discussed during the workshop. The topics presented include recording techniques, file formats, perturbation statistics extraction algorithms, nomenclature and classification, and the nature of perturbation. As a result, the papers ranged in style from technical summaries and algorithm descriptions to perspectives and commentaries.

It is estimated that 3 to 10 percent of Americans experience voice problems at
any given moment in time. The cumulative frequency over the life-span is much larger.
Assaults from the environment - pollution, sudden changes in humidity or exposure to
pharmacological agents - can make vocal fold tissues irritated or vulnerable to
damage. In other cases, disease or trauma impairs the vocal folds, larynx or surrounding
tissues. Genetic factors also play a role; some individuals’ vocal folds appear to be
naturally more robust than others. Finally lifestyle choices are significant. About 25
percent of the population engages in work that is “vocally demanding.” For these
individuals, either their jobs require excessive vocalization or their work environments
force them to speak above a high noise level.
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