Is it permissible to perform a voice-enhancement procedure to improve recitation (tartil)?

A Muslim should be keen to ponder over the Qur’an, understand its meanings, and act upon it, as this is the purpose of its revelation. There is no harm in supplicating to Allah to be blessed with a good voice for reciting the Qur’an, and in taking steps to improve it, such as learning Tajweed and listening to skilled reciters, while avoiding blameworthy artificiality, like undergoing surgery to improve one's voice unless there is a congenital defect that is outside the usual norm, because cosmetic surgeries are not permissible unless they are necessary to correct congenital or accidental defects that cause harm.