This is a flageolett sound played with plectrum on a steel-stringed acoustic guitar. I used this sound for coursera course "audio processing for music applications".
This sound was recorded in front of the bar of the port of gandia's beach. We can hear fishermen and people talking, with sound of the waves at the back.
A sound that's supposed to sound like a sword being drawn, made with a recording of me hitting a metal pipe with a pencil and a bit of computer editing.
Made this sound in audacity in around 5 minutes. Tried to make a sound for my game, but found that this could be useful in other games. Maybe a powerup?.