Assignment 4 - measuring formants
docx
keyboard_arrow_up
School
University Of Georgia *
*We aren’t endorsed by this school
Course
3060
Subject
Linguistics
Date
Jan 9, 2024
Type
docx
Pages
3
Uploaded by ProfessorKangaroo3014
LING 3060: Phonetics & Phonology
Homework 4: Measuring vowel formants
Goal:
Learn how to measure vowel formants in spectrograms, using the Praat software package
—
notice
that in the last part, you will study your own speech.
Instructions
Step 1: Read the Instructions in the rest of this handout.
Step 2: Extract the files for
HW4
from eLC.
In lab:
Practice measuring F1 and F2 in Praat.
1.
Open the vowels_1 WAV file and TextGrid in Praat.
2.
Select both vowels_1 files (hold down Control or Command), and open them together by
clicking “View & Edit.” You should see the Sound on top, and the TextGrid below.
3.
Measure the formants.
a.
Find the
steady state
of the vowel: this is where the formants are pretty flat, near the
temporal midpoint of the vowel as we measured in class.
b.
For each vowel in the file, measure both F1 and F2, either by pressing the F1 key and
F2 key, or by selecting “get first/second formant” from the dropdown menu.
Write
these measurements down.
c.
If you need help
, check the figures at the end of chapter 8 in your book to see what
formants look like!
d.
vowels-1
:
Vowel
F1
F2
[i]
337.20
2179.24
[ ]
ɪ
450.22
1930.82
[ ]
ɛ
533.89
1874.12
[æ]
647.68
1833.03
[ ]
ɑ
748.83
1108.30
[ ]
ɔ
693.34
904.86
[ ]
ʊ
569.40
1122.54
[u]
370.10
1481.79
Repeat the process for the files for vowels-2
vowels-2
:
LING 3060: Phonetics & Phonology
Vowel
F1
F2
[i]
396.48
2508.04
[ ]
ɪ
523.79
2139.39
[ ]
ɛ
598.35
1946.49
[æ]
633.33
1903.04
[ ]
ɑ
670.25
1256.18
[ ]
ɔ
618.07
1145.03
[ ]
ʊ
581.98
1119.32
[u]
399.08
1706.01
4.
Create
vowel plots
for the speaker based on your measurements.
a.
Open the file vowels.xlsx in Microsoft Excel.
b.
Fill in the F1 and F2 values for the speakers (Vowels 1 and 2).
Double check:
Did you put F1 and F2 values in the correct columns?
Did you put the values for the correct word in each row?
c.
Look at your vowel plots: If you’ve entered the data correctly, then the tab at the
bottom of the sheet labeled “Vowels 2” should contain a scatterplot with points.
d.
Make the plots pretty.
Add vowel labels
(Hint: Right-click on a data point, add data
labels, and then edit the text of each label to show the vowel instead of the formant
value.),
adjust the axes
to zoom in on your data, etc.
e.
When you are satisfied with your plots, copy & paste them into a Word document.
You can make them smaller, as long as they are readable.
f.
Make sure to save your Excel file.
Record and measure your own speech in the
Linguistics Lab
(120A Gilbert Hall)
5.
Sign up for a 15-minute time slot to do your recording
using
this Calendly site
.
a.
Either bring a USB flash drive, or expect to receive the recording via email.
b.
With the help of a lab assistant, prepare to record in a soundproof booth.
c.
Record yourself reading the words from
vowels-2
.
6.
Follow Step 4 (above) with your sound file to
measure your formant values
.
Your vowels
:
LING 3060: Phonetics & Phonology
Vowel
F1
F2
[i]
391.42
2858
[ ]
ɪ
544.56
2263.11
[ ]
ɛ
763.44
2064.60
[æ]
901.24
1676.56
[ ]
ɑ
861.99
1262.88
[ ]
ɔ
835.16
1337.94
[ ]
ʊ
621.59
1284.60
[u]
371.15
1548.5
In the vowels.xlsx file, type your formant values into the columns marked “Your Vowels.”
7.
Look at your vowel plot: If you’ve entered the data correctly, then the tab “Your Vowels”
should contain a scatterplot with points.
8.
When you have made your own vowel plot pretty (as in 5, above), copy & paste your
own vowel space plot into the Word document with your other two plots.
9.
In your Word document,
write two paragraphs
comparing the three vowel spaces to one
another.
a.
Do you think the Vowels 1 and Vowels 2 speakers speak the same variety of English?
(Do they have the same accent?) Why or why not?
b.
What is your vowel space like? How is it similar to or different from the other two?
Are your vowels in the same places, or different places? Why do you think they might
be similar or different?
10.
Do you have
any feedback on the lab portions of HW #3 and #4?
(Were they
helpful/unhelpful?
Why?
Are there possible improvements?)
What to turn in:
-
This handout, including
all formant values
(Vowels 2, Your Vowels)
-
A printed copy of your Word document, including
two vowel space plots
and a
response
to the questions in (10).
-
Please
staple
everything together and
write your name
on the first page if you turn this
in physically!
What you’re graded on:
-
The accuracy of formant measurements for both speakers
-
The correctness and formatting of both vowel plots
-
The depth, detail and insightfulness of your written comparison of vowel spaces
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help