Any way to improve this so-so audio stream?

Hello

This is a newbie question. I’m running Audacity 2.0.6 on Windows 7.

I’d like to improve the audio stream of a video that was shot with a camcorder with the embedded microphone in a somewhat noisy setting:

http://wikisend.com/download/532204/OR.so.so.sound.sample.m4a

Does someone know what I could try in Audacity to lower the background noise and make the interview more pleasant to listen to?

Thank you.

I don’t think that can be improved, other than by re-recording it, either somewhere quieter (best solution) or with a more directional microphone, or with a microphone closer to the person speaking.