1- 3/8/2011, 10 AM in class.

2- The wind is bracing the glass in the windows, making a creaking sound.

3- The professor is talking in response to questions from the class.

4- the class around me is asking the professor questions. Someone behind me is clearing their throat. I am coughing, as usual.
5- the general sound level is low.
6- Professional
7- the wind, the professor, and the class is necessary for this sound environment