chirp

sirittää

sirkutus, siritys

luritella, livertää A short, sharp or high note or noise, as of a bird or insect.
puhekieltä A pulse of signal whose frequency sweeps through a band of frequencies for the duration of the pulse.
puhekieltä to make a short, sharp, cheerful note, as of small birds or crickets
puhekieltä to speak in a high-pitched staccato
puhekieltä To modify (a pulse of signal) so that it sweeps through a band of frequencies throughout its duration.