Final answer:
The main contradiction presented about the voices is that they are faint but extremely alarming.
Step-by-step explanation:
The main contradiction presented about the voices is that they are faint but extremely alarming. This means that although the voices may not be loud, they are still very distressing and cause concern. An example of this contradiction can be seen in literature, where a character may hear faint whispers that create a sense of fear and foreboding.