Lisker and Abramson (1964)

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Lisker and Abramson (1964)

• A cross-language study of voicing in initial
  stops Acoustical measurements

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Voice onset time (VOT)
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• Lisker Abramson (1970)
• The voicing dimension some experiments in
  comparative phonetics

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Variation in VOT
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Spectrograms of English /ba/ and /pa/
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VOT frequency histograms of voicing categories
across six languages (Lisker Abramson, 1964)
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English identification functions for VOT stimuli
superimposed on VOT frequency histograms
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English discrimination functions for VOT stimuli
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Thai identification functions for VOT stimuli
superimposed on Thai VOT frequency histograms
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Thai discrimination functions for VOT stimuli
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