This is definitely my favourite trill to do on my flute (a buffet crampon 228). I hope this will be helpful to you!. Attribution is greatly appreciated, but not necessary! i'd love to see what you've done with my sound. :).
The rather loud trill of cicadas, their song rising and falling. Recorded with no human noise pollution on a swamp road, midmorning in the middle of summer in the american south.
2 seconds long. Consists of sine waves alternating betweenaround 120 hz and 300 hz with 4 harmonics. At two times an added noise appears whichsounds like a brush. Mono, sampling rate 44100 hz.
Distressed cicada on the ground clicking or trilling very fast and loudly. The insect had dried and flown, apparently, but for some reason landed in the wrong area in the late afternoon on a very hot day.
Recording from a swamp trail in west alabama in the united states. Starts with a bird cawing then other songbirds come to the fore. Also a constant trill from a singing cricket.
A recording of the beautiful, trilling song of the pine warbler. Saturday april 13th, 2013. Made at 6:30am in a pine grove, using my handy zoom h4n recorder with its built-in microphones.
Portion of the noontime repertoire of the tower church bells in a small town, with a car passing close by. In the background, a cicada trills (which means it is the height of summer in the southeast united states).
Driving very quietly and slowly down a paved road alongside a ditch full of standing water on a midsummer night past the sounds of cicadas, frogs, and crickets.