http://gizmoware.net/bping/

• ping
• sound
• alert
• monitoring
• beep

https://www.raymond.cc/blog/easily-change-or-switch-the-default-audio-sound-output-in-windows-vista-and-xp/

• software
• sound
• windows
• switcher
• audio
• output

http://lab.andre-michelle.com/tonematrix

• tonematrix
• sound
• synthesizer
• flash
• music
• musique