Speech
ARTICULATION
A measure of the intelligibility of speech.
LARYNX
Often called the ‘voice box’ it is located at the top of the windpipe at the lower end of the throat. It is made up of muscles, membranes and cartilages, and contains the vocal folds (vocal cords).
Speech Intelligibility
A measure of sound clarity that indicates the ease of understanding speech. It is a complex function of psychoacoustics, signal-to-noise ratio of the sound source, and direct-to-reverberant energy within the listening environment. See Articulation.
Speech Privacy
See Privacy Index (PI). The degree to which speech is unintelligible between offices. Three ratings are used: Confidential, Normal (Non Obtrusive) and Minimal.
VOCAL FOLDS
Often called the ‘vocal cords’, are made up of two membranes on the sides of our larynx (voice box). We talk by squeezing them close together as the lungs push air between them causing them to vibrate.
Citations
LaBelle, Brandon. 2010. Acoustic territories: sound culture and everyday life. New York: Continuum.
Helmholtz, H. L. F. v., Helmholtz, H. v., Ellis, A. J., Margenau, H. (1954). On the sensations of tone as a physiological basis for the theory of music. United Kingdom: Dover Publications.
Pierce, A. D. (1989). Acoustics: An Introduction to Its Physical Principles and Applications. United Kingdom: Acoustical Society of America.
Friedman, M. S., Hardy, H. (2013). Theater of Architecture. United States: Princeton Architectural Press.
Lyndon, D., Moore, C. W. (1994). Chambers for a Memory Palace. United Kingdom: MIT Press.
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Angus, J., Howard, D. M. (2017). Acoustics and Psychoacoustics. United States: Taylor & Francis.
Pohlmann, K., Everest, F. A. (2009). Master Handbook of Acoustics. United Kingdom: McGraw-Hill Education.