The phonological inventories of Germanic languages do not possess any phonological terms whose phonetic correlates are driven by non-pulmonic airstream mechanisms. Despite this, stops and fricatives produced with glottalic and lingual airstream mechanisms, or to be more accurate, sounds that have the acoustic structure and produce the auditory impression of sounds produced with non- pulmonic airstream mechanisms are a regular feature of utterances in languages such as German, Swedish and English (Simpson 2007). Epiphenomenal sound patterns are often far from auditorily or acoustically spectacular, and can easily be overlooked. However, such patterns are far from marginal.
More importantly, epiphenomenal or emergent sound patterns are a possible source of sound change and may over time become mainstream allophonic patterns (Ohala & Ohala 1991; Ohala 1995, 1997). The occurrence and increasing prevalence of utterance-final ejective stops and, more rarely, ejective fricatives in English is a striking contemporary and ongoing example of this (Simpson 2017, Simpson & Sulaberidze 2022). A further, perhaps unexpected, consequence of attempting to provide a detailed description of how epiphenomenal sound patterns are being produced is that they may lead us to reconsider the well-established descriptions of the regular phonetic correlates of similar elements in other languages, e.g. ejectives in Georgian or (pre-)voiced ejectives in Zhu|’hõasi (Snyman 1975, Maddieson 1984, Brandt & Simpson 2021).
References
Brandt, Erika & Adrian P. Simpson. 2021. The production of ejectives in German and Georgian. Journal of Phonetics 89, 101111.
Maddieson, Ian. 1984. Patterns of sounds. Cambridge: Cambridge University Press.
Ohala, John J. 1995. A probable case of clicks influencing the sound pattern of some European languages. Phonetica 52, 160–170.
Ohala, John J. 1997. Emergent stops. In Proc. 4th Seoul International Conf. On Linguistics [SICOL]. Seoul: Linguistic Society of Korea, 84–91.
Ohala, Manjari & John J. Ohala. 1991. Nasal epenthesis in Hindi. Phonetica 48, 207–220.
Simpson, Adrian P. 2007. Acoustic and auditory correlates of non-pulmonic sound production in German. Journal of the International Phonetic Association 37(2), 173–182.
Simpson, Adrian P. 2017. Are ejectives on the increase in English? Evidence from a single speaker. In Workshop on Speech Perception and Production across the Lifespan. London.
Simpson, Adrian P. & Nato Sulaberidze. 2022. Ejectives in English: elicitation and analysis. In Proc. Phonetik und Phonologie 18. Bielefeld.
Snyman, Jan W. 1975. Žu|’hõasi fonologie en woordeboek. Cape Town: Balkema.