ambient noise reduced & conversation brought forward

I am looking for a freelancer to complete a project with the goal of cleaning up the audio on an MP4. The purpose for the cleanup is to enhance the volume of the audio, and the audio consists of speech only. The desired outcome is for the audio to have improved speech intelligibility, with clear and crisp results. If you have expertise in audio cleanup and believe you can achieve this goal, I would love to have you apply for this project. Thank you!