Its manner of articulation is occlusive, which means it is produced by obstructing airflow in the vocal tract. Because the consonant is also nasal, the blocked airflow is redirected through the nose.
Allophonic variation of /m/ before voiceless plosives. Minimally contrastive with /m/ before voiced plosives: kemba[cʰɛmpa] 'to comb'.[7] See Icelandic phonology
Its phonation is voiceless, which means it is produced without vibrations of the vocal cords. In some languages the vocal cords are actively separated, so it is always voiceless; in others the cords are lax, so that it may take on the voicing of adjacent sounds.
It is a central consonant, which means it is produced by directing the airstream along the center of the tongue, rather than to the sides.
^Bergsland, Knut (1997). Aleut grammar: = Unangam Tunuganaan Achixaasix̂. Research papers / Alaska Native Language Center. Fairbanks: Alaska Native Language Center, University of Alaska. ISBN978-1-55500-064-6.
Jacobson, Steven (1995), A Practical Grammar of the Central Alaskan Yup'ik Eskimo Language, Fairbanks: Alaska Native Language Center, ISBN978-1-55500-050-9
Jones, Glyn E. (1984), "The distinctive vowels and consonants of Welsh", in Martin J. Ball and Glyn E. Jones (ed.), Welsh Phonology: Selected Readings, Cardiff: University of Wales Press, pp. 40–64, ISBN0-7083-0861-9
Walter, Henriette (1977). La phonologie du français. Presses universitaires de France – via Google Books. Les phonèmes nasals sont généralement réalisés comme des consonnes sonores, mais il peut y avoir des réalisations sourdes (rhumatisme prononcé [-sm̥]). Ces réalisations sourdes se rencontrent en particulier en finale absolue, après consonne sourde