Fan noise from an Apple Power G5. Sound recording on the side of the computer (facing "the apple"). Easily loopable sound effects. UCS Category: MACHFan. Duration: 00:10.
Very big modern train horn. It is a construction train, stationary (no Doppler-Fizeau effect). Sound recording at about 150 meters. UCS Category: TRNHorn. Duration: 00:06.
Awakening of the birds in the morning of 1 March (winter) at 7:30 in the country (France, Dep. 28). Pigeons, doves, sparrows, chickens, etc. UCS Category: AMBBird. Duration: 02:54.