I'm using 14.04 LTS on a thinkpad. For the past week or so, I've been regularly hearing these random bubbling/popping sound (I think that'S the best way I can describe them) and I cannot for the life of me determine where it's coming from.
The only open applications are the same that I always have open, even before this started happening: Chrome, Virtual Box (with Win7), Navigator and Text Editor. And in the Icon tray, I have Skype, Dropbox, Google Chrome and Wallch (wallpaper changer).
When I open the Sound settings, under applications, all I have are two entries for Virtual Box (one with the Multimedia icon, and the other with the Microphone icon).
And I cannot see any options in VirtualBox for sound notifications or anything like that. As for my windows virtual machine, I don't have much running except Office and I don't see any popus or anything when the sound happens.
Since the sounds lasts only for a second or so, I never have enough time to switch to this window to see if another application is active. So I was wondering if there was any way to log the sound activity, so that I could go back into the file and check which process or application made the sound?
Any help would be greatly appreciated as this is very frustrating! Thanks!