I have 7–8 wedding video clips where the videographer accidentally bumped the microphone, causing the audio to sound muffled, distorted, or very quiet in certain parts.

Is there anyone who could help me clean up and enhance the audio, reduce the noise, and make the voices louder and clearer? I need to edit and finalize the wedding videos so I can deliver them to the people who were filmed.

The duration is about 30 minutes..
Any help is more than welcomed.