midterm 1 Flashcards
What does “phonetics” mean?
Study of language by examining the inventory and structure of the sounds of speech.
What are the two types of phonetics?
- Articulatory phonetics: involves analyzing the physiological mechanisms of speech production.
- Acoustic phonetics: is concerned with measuring and analyzing the physical properties of the sound waves
What is the IPA?
International Phonetic Alphabet is a ystem of transcription attempts to represent each sound of human speech with a single symbol are enclosed in brackets [ ] to indicate that the transcription is phonetic and does not represent the spelling system of a particular language.
How do we use the IPA? What are the reasons to use the IPA?
- Letters represent different sounds in each word—and sometimes even a different number of sounds.
- The use of a standardized phonetic alphabet with a one-to-one correspondence between sound and symbol enables linguists to transcribe languages consistently and accurately.
- One symbol for every sound is used distinctively in at least one human language.
- Could represent pronunciation of word/phrase/utterance in any language
Why does the IPA represent speech in the form of segments?
Errors in speech production provide one kind of evidence for the existence of segments
o This suggests that segments are individual units of linguistic structure that should be represented individually in a system of transcription
o Relative invariance of speech sounds in human language also suggests that segmental phonetic transcription is a well-motivated way of transcribing speech
How is sound produced?
Sound is produced when air is set in motion. The air supply is provided by the lungs.
Where is the sound source?
The sound source is in the larynx, where a set of muscles called the vocal folds(vocal chords) is located.
What are the passages above the larynx? And what do they serve?
Vocal tracts or filters are the passages above the larynx; served to modify the sound
Where is the pharynx?
Pharynx is between the larynx and the oral cavity;
How are speech mechanisms kept functioning?
A certain level of air pressure is needed to keep the speech mechanism functioning steadily.
What are the intercostals and the diaphragm? (Not important really)
- The intercostals raise the ribcage to allow air to flow into the lungs during inhalation. (the muscles between the ribs)
- The diaphragm helps to control the release of air during exhalation for speech so that we can speak for a reasonable period of time between breaths. (the large sheet of muscle separating the chest cavity from the abdomen)
What is the “itinerary” of speech sounds?
Usually speech produced as air expelled from lungs, up the trachea (a.k.a. windpipe) while passing through the larynx
What is the difference between an egressive and an ingression airflow?
• egressive airflow(exhale), ingressive airflow(inhale, rare)
Explain what is the larynx and what are its specializations?
Complex structure of cartilage, muscles, and tissue where vocal folds are located; Vocal folds pulled apart or together; Air passes through glottis (space between vocal folds)
Larynx is specialized for speech in adult humans
• Descended larynx lower than in other primates
• Advantage: tongue can produce wider range of sounds
• Disadvantage: much easier to choke
What are glottals states and how are they produced?
Air passes through the space between the vocal folds, which is called the glottis
Different glottal states are produced depending on the positioning of the vocal folds:
How are voiceless sounds produced?
- Vocal folds pulled apart; no vibration of the vocal chords
* Sounds produced with this GS: voiceless; e.g. [s], [f], [h]
How are voiced sounds produced?
- Vocal folds are brought together and air is passed through the glottis they vibrate; produce phonation, or voicing.
- This GS used for voiced sounds; e.g. [z], [v]
What is a breathy voice?
Also known as murmur voice
• Vocal folds are partially open letting air pass through but still vibrating
• English: differentiates voices, not sounds
What is a creaky voice?
- Vocal folds are compressed and slack; vibrate slowly and irregularly; has a lower pitch
- English: often used to signal end of utterance, socially evaluated, but doesn’t distinguish sounds; Other languages: distinguishes sounds
What are the sound classes that humans can make?
Humans make two broad types of speech sounds/segments: vowels, consonants and glides (shows properties of both)
What are the articulatory differences between sound classes?
- Consonantal sounds: The airflow is either blocked momentarily or restricted so much that noise is produced as air flows past the constriction; voiced and voiceless
- Vowels are produced with little obstruction in the vocal tract and are usually voiced.
What are the aerodynamic differences between sound classes?
- Consonants: less acoustic energy (than vowels), may involve intervals of silence or noise
- Vowels are more sonorous (acoustically powerful) than consonants, and so we perceive them as louder and longer lasting; no noise
How can syllables be defined?
• A syllable can be defined as a peak of sonority surrounded by less sonorous segments.
Can vowels form the nucleus of a vowel?
yes
Can you explain what are syllabic and non-syllabic sounds?
- Consonants (non-syllabic elements) are produced with a complete closure or narrowing of the vocal tract and are less sonorous
- Vowels (and other syllabic elements) are produced with relatively little obstruction in the vocal tract and are more sonorous
- Glides are very rapidly articulated non-syllabic segments
How are glides produced?
are produced with an articulation like that of a vowel; they move quickly to another articulation or quickly terminate (e.g. yet or now)
What are the steps for describing consonants?
- Voicing 2. Place of Articulation 3. Manner of articulation
How is airflow modified in the vocal tract?
by the placement of the tongue (organ) and the positioning of the lips.
How can we assess a sound’s place of articulation?
- vocal tracts’ structures move into different configurations to create different speech sounds
- point of contact between active and passive articulator(e.g. tongue and lips)