Applicable answer
Q1. The airflow change in the sequence of sounds [hih....]: When pronouncing [h] in front of the vowel [i], OQ is bigger in the portion of [h] than in the portion of the vowel, and so is the airflow. Since there is more constriction at the vocal folds when pronouncing a vowel, not just OQ but also the amount of the air goes through the vocal folds is less in case of vowels than in case of [h]. The vocal folds are more open when pronouncing [h] than when pronouncing a vowel, so it's like a breathy phonation.
Q2. OQ change in 'who' (time 0.72-0.82 sec): OQ is small at the beginning, increases toward the middle, then decreases again.
Q3. In the [h] of "who", EGG shows that there is no vocal folds vibrating, but strangely, acoustic effects are observed, even though it's damped. Also interestingly, we see the oral airflow is oscillating. The acoustic effects seems to come from the oral airflow fluctuations. The reason I guess: after vocal folds stop vibrating, a small amount of airflow comes out of the glottis, which is still slightly vibrating. Acoutstic effects come from the weak vibration of the remnant airflow.
Q4. In the [z] of "has", we see the phenomenon which is just the opposite of what we observed in Q3. There are glottal oscillations, but no acoustic effects.
Q5. Looking more closely at the OQ, we see that at the transition of one vowel to the other, the OQ decreases, which evidences presence of glottal constriction.
Q6. The initial consonants [p], [k], [t] of "applicable", "keep", "to" have big non-oscillating airflow, which suggests that the consonants are aspirated without vocal folds vibation. The amount of airflow is smaller in [k] of "keep" than [p] of "applicable", maybe because the place of articulation is closer to the microphone in case of [p] than [k]. Measurements of VOTs are as follows:
VOT
[p] of 'applicable' 64ms
[k] of 'keep' 57ms
[t] of 'to' 19 ms
Q7. In fact, the final stop in "keep" is not actually a final stop. It seems that [i] in "keep" is devoiced, and [p] has only a weak burst, parsed like the onset to "it". Anyway, we can see a short period of glottal vibration at the end of "it", rather than burst of [t] release: because the airflow is very small. However, it is a bit strange that where glottis is open, the airflow is small.
Q1. The airflow change in the sequence of sounds [hih....]: When pronouncing [h] in front of the vowel [i], OQ is bigger in the portion of [h] than in the portion of the vowel, and so is the airflow. Since there is more constriction at the vocal folds when pronouncing a vowel, not just OQ but also the amount of the air goes through the vocal folds is less in case of vowels than in case of [h]. The vocal folds are more open when pronouncing [h] than when pronouncing a vowel, so it's like a breathy phonation.
Q2. OQ change in 'who' (time 0.72-0.82 sec): OQ is small at the beginning, increases toward the middle, then decreases again.
Q3. In the [h] of "who", EGG shows that there is no vocal folds vibrating, but strangely, acoustic effects are observed, even though it's damped. Also interestingly, we see the oral airflow is oscillating. The acoustic effects seems to come from the oral airflow fluctuations. The reason I guess: after vocal folds stop vibrating, a small amount of airflow comes out of the glottis, which is still slightly vibrating. Acoutstic effects come from the weak vibration of the remnant airflow.
Q4. In the [z] of "has", we see the phenomenon which is just the opposite of what we observed in Q3. There are glottal oscillations, but no acoustic effects.
Q5. Looking more closely at the OQ, we see that at the transition of one vowel to the other, the OQ decreases, which evidences presence of glottal constriction.
Q6. The initial consonants [p], [k], [t] of "applicable", "keep", "to" have big non-oscillating airflow, which suggests that the consonants are aspirated without vocal folds vibation. The amount of airflow is smaller in [k] of "keep" than [p] of "applicable", maybe because the place of articulation is closer to the microphone in case of [p] than [k]. Measurements of VOTs are as follows:
VOT
[p] of 'applicable' 64ms
[k] of 'keep' 57ms
[t] of 'to' 19 ms
Q7. In fact, the final stop in "keep" is not actually a final stop. It seems that [i] in "keep" is devoiced, and [p] has only a weak burst, parsed like the onset to "it". Anyway, we can see a short period of glottal vibration at the end of "it", rather than burst of [t] release: because the airflow is very small. However, it is a bit strange that where glottis is open, the airflow is small.
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