DHEROUVILLE_MARGOT_2019_2020_alarm.wav

This sound of alarm clock was entirely made with Audacity.
First, I generated a sinusoïdal key at 575 Hz with an amplitude of 0.11 during 3 seconds.
Then I deselect my track and I generated an other sinusoïdal key at 1500 Hz with an amplitude of 0.33 during 3 seconds too.
I deselected the track and I generated a final sinusoïdal key at 2800 Hz with an amplitude of 0.56 during 3 seconds.
Next I selected my 3 tracks and I clicked on Track - Mix and render to a new track.
I added a tremolo effect with a reverse serrated and a degree of 0, a level of 100 and a frequence at 25,0 Hz.
The wave must looks like stuck triangles.