Phonetically in some languages, such as Navajo, aspiration of stops tends to be realised as voiceless velar airflow; aspiration of affricates is realised as an extended length of the frication.
నవాజోలో, అఫ్రికేట్ల ఆకాంక్షను దేనిగా చూడవచ్చు?
an extended length of the frication