I asked ChatGPT to remember sounds in my 1972 classroom because I wasn’t there at the time.
You may have heard other audio equipment commonly used in classrooms at that time, such as tape recorders or phonographs, which could play recorded audio such as speeches, music, or sound effects. You might have also heard the sound of slide projectors, film projectors, or overhead projectors, which were commonly used to display visual aids in classrooms.
It’s also possible that the classroom had a bell or buzzer system to signal the start and end of class periods, or to indicate when it was time to change activities. Other ambient sounds might have included the sounds of students shuffling papers, writing on chalkboards, or turning pages in textbooks.