Surveillance Audio Enhancement

I need to enhance voices on a surveillance video to clarify conversations for legal evidence. The current audio quality is somewhat clear but mixed with background noise, primarily from people talking.

Requirements:
- Use specialized audio editing software to reduce background chatter and enhance dialogue clarity.
- Ensure the final audio is clear and intelligible without distortion or artifacts.
- Provide the enhanced audio in a format compatible with common video players.

Ideal skills and experience:
- Proficiency in audio editing and enhancement.
- Experience with surveillance video/audio.
- Attention to detail and ability to work with mixed audio sources.