1.
A sound that is low-pitched is deep.
With a low-pitched rumbling noise, the propeller began to rotate.
ADJ
2.
A voice that is low-pitched is very soft and quiet.
He kept his voice low-pitched in case someone was listening.
ADJ
LOW-PITCHED
Meaning of LOW-PITCHED in English
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006