For example, in Chumash, when a word ends with a glottal stop and comes at the end of an intonation unit, the final vowel is repeated after the glottal stop but is whispered and faint, as in [jaʔḁ] for /jaʔ/ "arrow" (written ya).
The Makassaric languages also occurs the echo vowels with stems ending in final /r/, /l/ or /s/.
E.g. /botol/ "bottle" is realized as bótolo in Selayar and Coastal Konjo, and as bótoloʔ in Makassarese (the latter regularly adds a glottal stop to the echo vowel).
Such a system is found in Maya, with complications depending on the quality of the preceding vowel.
However, consonant clusters were separated with echo vowels: the city of Knossos is written as if it were Konoso (Linear B: 𐀒𐀜𐀰, ko-no-so).