It was narrated that Al-Bara' bin Azib said: "The Messenger of Allah ﷺ said: 'Make your voices beautiful when you recite Quran'."
The Prophet Muhammad also taught us that when we recite the Qur’an, we should do so slowly and clearly so that each word can be understood properly. This will help us gain more insight into what Allah has revealed to us through His holy book. Furthermore, by reciting with a beautiful voice we can create an atmosphere of peace and tranquility which will help us focus on understanding what Allah has said better.