Sound recording of a student typing on their MacBook Pro laptop in an empty classroom. The classroom has audible air conditioning running, and the sound of the student's sweater can be heard rubbing against the computer as they type. Recorded using a Blue Microphones Bluebird SL Large-Diaphragm condenser microphone and an Alesis MultiMix 4 USB FX 4-Channel Mixer.
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.