Today in germany used electronic siren with permanent sound to inform population when there is no more danger. Recorded with zoom h4n on top of the roof 1/2 mile away from the siren.
An alarm sound. I don't remember how i made it, so there isn't much to say about it. Update at 31. 12. 2022: this sound is better if it's sped up to 1. 5x or 2. 0x.
An alarm sound. This sound was made by recording an actual beep from an alarm clock, duplicating the sound and slowing it down to 40% (0. 4x) of the original speed.
Me saying "you have a new message". It can be used for either email or message notification. I used the built-in microphone of a toshiba laptop to record this.
Today in germany used electronic siren to alert population in case of danger. Listen to your local radio station for further information. Recorded with zoom h4n on top of the roof 1/2 mile away from the siren.
I created a sound by playing with its envelope then i cut it and repeated. Then half the time i insert a linear sinusoid noise at 440 hz and 0. 8 amplitude.