A one second sinewave of 440Hz, the frequency that corresponds to an A4.
Sine wave. 440 Hz frequency Created with Audacity
A synthesized sinusoid of 440 Hz, corresponding to the frequency of the note A4, with a duration of 10 seconds ...
Made by a student in Lyon, France.
Sum of two sinewaves. One of 440Hz and the other of 490Hz.
Sounds just like a telephone, in pack BEEP this is a GoLDBeRG.
Longer wailing alarm. WAV version.
Short wailing alarm. WAV version.
Example of a simple sine wave that is timed by limiting the number of samples. Sound generated using the go-sound ...
Longer wailing alarm. OGG version.
Short wailing alarm. OGG version.