Psychoacoustic roughness as a measure of glottalization in consonants

2019 Fiscal Year Research-status Report

• Project/Area Number: 19K13162
• Research Institution: The University of Aizu
• Principal Investigator: Perkins Jeremy 会津大学, コンピュータ理工学部, 上級准教授 (30725635)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: phonation / creakiness / tone / Thai / consonants

Outline of Annual Research Achievements

Audio and electroglottographic data was collected from 20 native Thai speaking participants in November 2019. This audio data was collected from a controlled recording of the speakers reading a list of words, as outlined in the project plan. From December 2019 to May 2020, the audio data was annotated by a team of research assistants. This annotation procedure is necessary in order to separate and label the parts of the sounds that correspond to vowels and consonants. Analysis of the vowels for pitch and voice quality can now be done following this annotation procedure.

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

The experiment in Thailand and the annotation process have proceeded on schedule as originally planned.

Strategy for Future Research Activity

Regarding the Thai data, the next step will be to annotate the electroglottographic (EGG) data. The annotations already finished for the audio data can be applied to this data. Both EGG and audio data will then be analyzed for psychoacoustic roughness via a script in Matlab. Once these results are produced, they will be written up for presentation and publication at a conference in late 2020, as originally planned.
Regarding the plan for Korean data collection, I will coordinate a plan to collect this data in South Korea in November 2020. If travel is not possible due to the pandemic, I will arrange to employ a researcher on site to collect the data in my stead.

Causes of Carryover

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