OT: Can anyone identify this strange computer sound?

[Roger Mills]

My W10/64 Pro desktop computer emits a strange squawking noise from time to time - typically several times a day but sometimes several times in quick succession.

Each instance is short and sharp, and lasts about 300mS. It is definitely coming through the audio system rather than being (say) a disk bearing because its volume depends on the volume control setting, and I have been able to record it by setting the recording input as "Stereo Mix".

You can hear it here:

and you can see the waveform here: I assume that some application or other is trying to tell me something, but it's never accompanied by any message or notification on the screen, and I can't find anything in the error logs. In addition, I can't find any system sound which sounds like this.

I shall be most grateful if someone can put me put me out of my misery and tell me what's likely to be causing it.

[Steve Walker]

It's looking for passing submarines.

Sorry. It's not a sound that I recognise as a normal PC notification.

[Andy Burns]

I don't recognise the sound, but if you right click the speaker icon in the tray after it's done it, and go to volume mixer, it usually shows individual sliders for any apps that have recently played sounds, so look for apps other than the "usual" such as browsers and media players.

[Bob Eager]

It's not a key temporarily sticking down, is it?

[Brian Gaff (Sofa]

And anti virus and dropbox or other cloud storage systems as there seems to be an outbreak of noise generation of late, no doubt trying to emulate the smart phones. Brian

[Brian Gaff (Sofa]

What is the current sound for usb device or USB device failed to initialise. I have found if you set the settings in some configs, these errors do not generate the text but still make a noise. I use non standard noises but maybe its something similar to that, wiggle you usb devices about in the sockets. I had a sticky caps lock key once that made a sound like that but it was multiple not just one offs like your recording.

Brian

[The Natural Philosopher]

I would check that you haven't caught a virus and that your browser is closed.

[nightjar]

That is the closest sound I can think of too. :-)

[Dave W]

It might be worth running the machine in Safe Mode for a while, to eliminate some background tasks. My Thunderbird bleeps when a new mail comes in - perhaps it's something to do with your mail program?

[Paul]

A suggestion in the other group, is a Chrome extension.

Only you know what you've got for Chrome Extensions.

Paul