American English (Indo-European)
English is discussed in its own section in the paper, which reviews the arguments for its two purported affricates and discusses the data sources we used. Briefly, the arguments are not particularly strong, and the results of our simulations are correspondingly fragile. Finding [tʃ] requires narrow transcription of the stop portion. While this can be motivated, it is not necessary in other cases.
Simulation data at a glance
Click on simulation name to view additional simulation details.
|Simulation name||Initial state Learning Data||Initial state features|
Simulation details for English celex narrow
This is the same dataset as "broad", but with [t ʃ] and [d ʒ] replaced by [c ʃ] and [ɟ ʒ] respectively. Celex shows morpheme boundaries as syllabification in cases like "pot shot", so those [t ʃ] sequences were transcribed with alveolar first halves. See details here.