FL Miami Westin conference hallway room tone. Zoom H4n
The sound of a large machine running.
nazi skinheads in action 01, protest against islamisation of europe, bratislava-slovakia, main trainstation 20150620
Short police siren, as if hitting the manual button for only a second.
This is (I believe) the best recording on line of the famous "Wilhelm Scream"
Drawing a circle with a Super Sharpie Permanent Marker. Recorded using an AKG Blue Line se300b/ck93 mic.
variants of guitarguy1985's wrong answer type buzzer (#5404)
Recorded using a Zoom H1 and a Rode Videomic.
A great sound that I produced in Audacity using the wah wah effect after using white noise. It sounds rather ...
Buzz roll on snare drum with rather loose snare wires.
A printer printing a piece of paper.
The obligatory printer sample. Fairly modern. Recorded with a Zoom H2.
A little pop sound. Use this for anything you want. Would be Public Domain but freesound doesn't have an option ...