This is a recording of a lecture of a Physics 2211 class in the Howey Physics Building at Georgia Tech. The professor and other ambient sounds in the lecture hall can be heard. This was recorded with a Samsung Galaxy S8+ and edited with Audacity.
Sound recording of a math review session in a classroom at Georgia Tech. The TA wrote on the whiteboard, answered a student's question, and erased the whiteboard. Recorded with Moto Z recorder.
Sound recording of a 9:55 a.m. class dismissal, in Georgia Tech's CULC, positioned on the third-floor balcony that is above the lecture rooms and close to the ground 1 entrance. Recorded on iPhone 7.