Eta Aquarii's language

This is the Hydrian language:
A Æ Å B C CE CH D E F G H I J K L M N Ñ O Œ P Q ER R S ß T U V W X XE Y Z | ||

These (| ||) are used as denoting low sounds, so writing "uh" in this language is "u|". || is used to denote deeper sounds, almost like groans.