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COMD 5070 Quizzes 4 & 5 For Exam 2

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COMD 5070 Quizzes 4 & 5 For Exam 2 Source-Filter Model - The "Source" Refers To: ️ c. The larynx which produces all the frequencies. - The larynx is responsible for generating sound frequencies through vocal fold vibration. Changes in Vocal Tract Shape - If You Change the Shape or Leng...

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  • August 15, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • comd 5070 quizzes 4 5 for exam 2

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COMD 5070 Quizzes 4 & 5 For Exam 2


Source-Filter Model

- The "Source" Refers To:

✔️ c. The larynx which produces all the frequencies.

- The larynx is responsible for generating sound frequencies through vocal fold vibration.



Changes in Vocal Tract Shape

- If You Change the Shape or Length of Vocal Tract Areas:

✔️ a. You will get changes in resonant frequencies (i.e., formants).

- Changes in the configuration of the vocal tract affect the resonant frequencies, which define the
characteristics of vowels.



Fundamental Frequency Changes

- When Fundamental Frequency of the Voice is Raised:

✔️ d. The harmonics increase.

- When the pitch (fundamental frequency) is raised, all the harmonic frequencies also increase in value.



First Formant (F1)

- F1 is Related to:

✔️ a. Vowel height/openess.

- The first formant (F1) correlates with how open or closed the vowel sound is.



Creation of Vowel Sounds

- To Create Vowel Sounds:

✔️ b. False (indicates confusion, as the statement implies).

- The vocal tract modifies the harmonics produced by the vocal folds, but vowels depend on the
filtering effect of the tract rather than new frequencies being generated.

, Factors Altering Vowel Production

- Factors Altered for Different Vowels (e.g., "ahh" or "ee"):

✔️ d. Tongue and jaw height, tongue frontness/backness, lip rounding.

- These adjustments affect the acoustic properties and resonance of the produced sounds.



Talking Fast

- What Happens When We Talk Fast:

✔️ c. Vowel undershoot or neutralization.

- Rapid speech can lead to less distinct vowel production, resulting in reduction or blending of vowel
qualities.



Vowel Diphthongs

- What Happens to Vowel Formants When Producing Diphthongs (e.g., "bye" or "bay"):

✔️ c. The formants change during the production of the vowel.

- Diphthongs involve a glide from one vowel quality to another, which affects formant frequencies.



Formants on a Spectrogram

- Formants on a Spectrogram Appear As:

✔️ b. Dark bands that occur during vowel production, indicating more intensity at a certain frequency.

- These dark bands represent the resonant frequencies and provide insight into vowel quality.



Formant Variability Across Speakers

- Formant Values Can Differ Across Speakers Due To:

✔️ a. Differences in vocal tract size due to anatomy/size of the speaker. Also, consonants that the
vowel is next to.

- Speaker anatomy plays a significant role in formant frequency production, as does the surrounding
phonetic context.



Closure of Stop Consonants

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