Kennedy Larson
A01799680
COMD 5070
Project 4 Assignment – Upload to Canvas (100 points)
1. Compute vowel F0 manually and with Praat
What was the duration of 10 cycles of phonation in the low pitch vowel? 3 points.
0.094197
What was the duration of 1 cycle? 3 points
0.0094197
What was the F0 in Hz that you calculated (inverse of 1 cycle duration in seconds)? 3
points
106.1605 Hz
What F0 did Praat report? 3 points
106.0109
When you zoom in to see 5 cycles of the voicing waveform and the narrow band
spectrogram up to 4000 Hz, describe the features you see for the low pitch vowel. 10
points
The first thing I see is that it is a nearly-periodic wave. The amplitudes of the various
periods are slightly different. However, I’m able to differentiate the periods easily due to
the fact that they are so similar. I also notice that this particular low-pitch vowel has 10
different amplitudes. With this vowel’s spectrogram, you can clearly see many harmonics
being used during the sound. It also illustrates clear vocal fold vibrations. Lastly, the
spectrogram shows darker bands towards the lower-end of the frequency range, or 0 Hz.
This is to be expected as this is a low-pitch vowel.
What was the harmonics to noise ratio for this vowel? 3 points
24.459 dB
What was the duration of 10 cycles of phonation in the high pitch vowel? 3 points
0.050645
This study source was downloaded by 100000899606070 from CourseHero.com on 02-21-2026 21:38:52 GMT -06:00
https://www.coursehero.com/file/34514957/Project-4-doc/
A01799680
COMD 5070
Project 4 Assignment – Upload to Canvas (100 points)
1. Compute vowel F0 manually and with Praat
What was the duration of 10 cycles of phonation in the low pitch vowel? 3 points.
0.094197
What was the duration of 1 cycle? 3 points
0.0094197
What was the F0 in Hz that you calculated (inverse of 1 cycle duration in seconds)? 3
points
106.1605 Hz
What F0 did Praat report? 3 points
106.0109
When you zoom in to see 5 cycles of the voicing waveform and the narrow band
spectrogram up to 4000 Hz, describe the features you see for the low pitch vowel. 10
points
The first thing I see is that it is a nearly-periodic wave. The amplitudes of the various
periods are slightly different. However, I’m able to differentiate the periods easily due to
the fact that they are so similar. I also notice that this particular low-pitch vowel has 10
different amplitudes. With this vowel’s spectrogram, you can clearly see many harmonics
being used during the sound. It also illustrates clear vocal fold vibrations. Lastly, the
spectrogram shows darker bands towards the lower-end of the frequency range, or 0 Hz.
This is to be expected as this is a low-pitch vowel.
What was the harmonics to noise ratio for this vowel? 3 points
24.459 dB
What was the duration of 10 cycles of phonation in the high pitch vowel? 3 points
0.050645
This study source was downloaded by 100000899606070 from CourseHero.com on 02-21-2026 21:38:52 GMT -06:00
https://www.coursehero.com/file/34514957/Project-4-doc/
