helium descrambler

== English == === Noun === helium descrambler (plural helium descramblers) (technical diving, saturation diving, underwater diving) An electronic device that lowers the pitch of speech, to compensate for the high-pitched speech of someone breathing in a helium atmosphere mixture (e.g. heliox or heliair), so as to be understandable to other people. ==== Synonyms ==== helium unscrambler helium speech unscrambler helium speech descrambler