Thesaurus of Acoustic Phonetic Terms:  Introduction

The Thesaurus of Acoustic Phonetic Terms  is a controlled vocabulary that contains terms that are central to the field of acoustic phonetics and also shows how these terms are related to one another.  The target audience are those with a minimal understanding of phonetics who seek a deeper knowledge of acoustic phonetics in particular.  It could also be applied in the capacity of an indexing language for a database of periodical articles and other literature on the subject.  Although the scope right now is limited to acoustic phonetics, in the future it may be expanded to include all of phonetics.  Right now the thesaurus is in its pilot phase waiting to be tested by a select group of users familiar with acoustic phonetics made up of phoneticians and speech & hearing scientists.

 

Standard Used to Derive Terms

Terms and their various relationships to one another were derived according to the  Guidelines for the Construction, Format, and Management of Monolingual Thesauri (ANSI/NISO Z39.19-1993).  The following sections describe how this standard was followed.

 

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Scope of Terms (3.1)

bulletThe Thesaurus of Acoustic Phonetic Terms contains single and multi-word terms for single concepts formulated in accordance with sections 3 and 4 of ANSI/ NISO Z39.19-1993.  Terms may be combined  post-coordinately in order to formulate more complex concepts.  General peripheral terms have been included as needed (e.g. males, age differences).  Where necessary, terms more often associated with articulatory and auditory phonetics have also been added when they are needed to support particular concepts within acoustic phonetics.  For example, terms such as vocal tract and its component sections oral cavity, nasal cavity, and pharyngeal cavity are all included as preferred terms.  However, parts of these sections like the vocal folds and the glottis appear only as USE terms for pharyngeal cavity.  If the scope of the thesaurus were to be expanded to include a comprehensive picture of articulatory phonetics, terms like vocal folds and glottis would then be included as preferred terms.  As it stands, these terms are too peripheral given the scope of the current project.  

 

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Scope Notes (3.2.2)

bulletScope notes  for preferred terms are included in almost all cases except when they would not really provide any useful information or clarification (3.2.2).  For example, the preferred term "speech" does not have a scope note.  The abbreviation SN indicates scope note.

 

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Types of Concepts (3.3)

bulletA faceted approach was taken in order to classify terminology.  Types of concepts which occur  in the thesaurus include:
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things and their physical parts
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e.g. vocal tract, oral cavity

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activities or processes
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e.g. speech synthesis

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properties or states of persons, things, materials or actions
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e.g. frequency

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disciplines
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e.g. phonetics

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units of measurement
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e.g. hertz

 
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Grammatical Form of Descriptors (3.4)

bulletThe suggestions for the grammatical form of descriptors have been followed as close as possible.  Prepositional noun phrases were generally avoided (3.4.1.2.2).  However,  manner of articulation and place of articulation appear as preferred terms according to both user and literary warrant.  Although articulation point may be used to express place of articulation in some instances, it is not commonly used.  Thus it is included as a non-preferred term even though it would be more syntactically appropriate. 

 

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Singular and Plural Forms (3.5)

bulletThe guidelines for singular and plural forms have been followed.   As per the exception to plural count nouns (3.5.1.1) count nouns referring to body parts appear in the singular form (e.g. nasal cavity, nose).

 

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Selection of Preferred Form (3.6)

bulletForms for terms were derived according to the principles of literary and user warrant following the criteria listed in section 3.6.   Please see Resources for Term Collection for more information.

 

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Capitalization (3.7.1)    

bulletTerms are presented in lower-case letters unless there it contains a proper noun that must be capitalized (e.g. discrete Fourier transforms).

 

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Hyphens (3.7.2.2)

bulletHyphens are avoided whenever possible.  For example, low pass filters rather than low-pass filters since removing the hyphen does not lead to ambiguity.

 

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Compound Terms (4)

bulletCompound forms appear only when they represent a single concept (e.g. speech signal distortion) and are supported by user and/or  literary warrant. 

 

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The Equivalence Relationship (5.2)

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Equivalence relationships are indicated by USE (which directs the user from a non-preferred term to the preferred term) and UF (which alerts the user to the existence of alternate, non-preferred terms).    Some examples of specific equivalence relationships include:

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Synonyms (5.2.2) -- e.g.  air flow UF air

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Quasi-synonyms (5.2.4) -- e.g. antonyms like formants UF antiformants.

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Generic Posting (5.2.4.1) -- e.g. oral cavity UF tongue

 

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The Hierarchal Relationship (5.3)

bulletBoth generic and whole part hierarchal relationships are present in the thesaurus (mainly generic though).  BT (broader term) is the label used for the superordinate descriptor, while NT (narrower term) is the label used for the subordinate descriptor.   Here are a couple of representative examples:
bulletGeneric hierarchal relationship (5.3.1):

copy synthesis                                       speech synthesis

 BT speech synthesis                              NT copy synthesis

 

bulletWhole part hierarchal relationship (5.3.2):

acoustic phonetics                             phonetics

  BT phonetics                                          NT acoustic phonetics

 

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The Associative Relationship (5.4)

bulletThere are quite a few relationships between descriptors belonging to different hierarchies (5.4.2).  These reciprocal non-hierarchal relationships are indicated in both records by the abbreviation RT (related term).  Differentia from dictionary definitions as well as relational structures were used in identifying various associative relationships (Iyer 83).  The following is a list of typical relational structures along with examples:

 

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discipline and object studied
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acoustic phonetics RT speech

 

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discipline and application of discipline
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acoustic phonetics RT speech synthesis

 

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process and instrument
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speech signal distortion RT filters

 

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process and product
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Fourier transforms RT spectrums

 

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entity and device used to produce it
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obstruents  RT vocal tract

 

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entity and property
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speech RT frequency

 

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actions and their targets
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acoustic analysis RT speech

 

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properties and their units of measure
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frequency RT hertz

 

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Typography (6.3.3)

bulletNon-preferred terms are displayed in lightface italics, relationship indicators are capitalized (e.g. SN, BT), and preferred terms appear in boldface

 

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Filing (6.3.5)

bulletAlphabetical characters are filed word-by-word (6.3.5.1).  Numerals and Non-Alphanumeric characters are not used.

 

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Alphabetical Listing (7.3.1)

bulletThe thesaurus screen display is organized alphabetically and includes both descriptors and entry terms.

 

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Pilot Thesaurus (8.9.2)

bulletThis is a pilot thesaurus.  It awaits testing by a select user group made up of phoneticians and speech &hearing scientists.  The pilot version was completed on April 28, 2002.  It will be revised in the next few months.

 

Suggestions and comments: 

Please send all suggestions and comments to the lexicographer, April Rice, at arice@dakotacom.net           Feedback is greatly appreciated.

 

 

 

 

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