Editing Fortis and lenis (section)

=== Relationship between strength and length ===
{{Harvcoltxt|Kodzasov|1977}} describes the fortis consonants for [[Archi language|Archi]]: 
{{blockquote|Strong phonemes are characterized by the intensiveness (tension) of the articulation. The intensity of the pronunciation leads to a natural lengthening of the duration of the sound, and that is why strong [consonants] differ from weak ones by greater length. [However,] the adjoining of two single weak sounds does not produce a strong one [...] Thus, the gemination of a sound does not by itself create its tension.<ref>translated in {{Harvcoltxt|Ladefoged|Maddieson|1996|pp=97–98}}</ref>}}

Fortis stops in [[Australian Aboriginal languages]] such as [[Rembarunga language|Rembarunga]] (see [[Ngalakgan language|Ngalakgan]]) also involve length, with short consonants having weak contact and intermittent voicing, and long consonants having full closure, a more powerful release burst, and no voicing. It is not clear if strength makes the consonants long, or if during long consonants there is a greater opportunity for full articulation.