1. Phonology Project Waisman Center University of Wisconsin-Madison
An Acoustic Method to Quantify Perceived Vocal Tremor: Method Illustrations and Sound Files
Phonology Project Waisman Center University of Wisconsin-Madison
Fourakis, M. [2010]. An acoustic method to quantify perceived vocal tremor. [Tech. Rep. No. 16]

2. Slide 1
Waveform and amplitude envelope of the vowel in the word “did” produced by Participant 4.

3. Running RMS power plot of the word “did.”
Slide 2
Running RMS power plot of the word “did.”

4. Slide 3
Spectrum taken in the middle of the power plot, showing the lowest frequency peak at about 9 Hz.

5. Slide 4 Participant 1 “head”
“I go to her him go * <he> head her him new <t> teacher”
Participant 1 “she”
“She needs strawberry jam on her toast” *
Participant 3 “dad”
“Dad”
Participant 3 “he is”
“He’s in a different class”

6. Slide 5 Participant 3 “pool” “I went (to the) pool”
Participant 3 “you”
“pushes you back”
Participant 4 “have”
“he because he can’t have galactosemia”
Participant 4 “he”

7. Slide 6 Participant 5 “did” “we did Participant 5 “pool”
“we went to the pool”
Participant 5 “saw”
“I saw fish”
Participant 5 “then”
“then we went back to the hotel”
Participant 5 “we”
“We um we went there we stayed at two hotels