When the airport closes for the night, they turn on the AWOS system, and this is what it sounds like. Read about AWOS at https://en.wikipedia.org/wiki/Automated_airport_weather_station

KOSU AWOS 121.35 Mhz 2013-10-05 23:00 EDT

My first interactions with Air Traffic Control at The Ohio State University Airport KOSU Don Scott Field. I screw up at the beginning and I don't read back the instructions, so I repeat them, but the scanner had already switched over to the tower before you hear my mea culpa. You also don't hear me acknowledge my landing clearance, for whatever reason it wasn't picked up by the scanner. This is an edit from downloads at liveatc.net from October 27th, 2013.

First Contacts with KOSU Ground and Tower

Elephant (cover)

Lucky Denver Mint

Recorded using GQRX and an RLTSDR plus upconverter.

th0ma5w