Description: pitch contours and duration of Non-Hanoi Northern Vietnamese tones of a male speaker the glottal stop [ʔ] marks the glottal closure in the middle of the ngã tone adapted from Nguyễn & Edmondson (1998: 8-9).
Credit: Own work
Usage Terms: Creative Commons Attribution 3.0
License: CC BY 3.0
License Link: http://creativecommons.org/licenses/by/3.0
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