Laptop speakers rushing / flipping / whirring at certain voices?

About two weeks ago I bought a new laptop: Asus, Zenbook.

I noticed from the beginning that something was wrong with the sound.

With clear sounds WITHOUT vocals / voices you can hear everything very clearly, but with series / films / songs with text / voices I hear again and again like a humming in the background, in my over 6 years old laptop I do not have that why me the problem noticed quite quickly on the new laptop.

I've been to Computer Doc twice, and of course the problem was gone, even in the places where I could hear this whirring very well, there was not a trace of them - Probably a browser problem, it was said. Once home, the same problem starts again, so Chrome uninstalled and started using Firefox - NO DIFFERENCE.

+ With headphones, I hear this whirring not at all.

I think it has something to do with some software that affects the sound, but my knowledge of laptop's is not enough.

Please help me, I have no more pleasure in hearing anything about the Lautaprecher.

Can it be that the device is somewhere where it causes vibrations?

Your description actually indicates a bug in a speaker: a small iron chip or a badly soldered wire could touch the voice coil or diaphragm at some frequencies or levels, causing the noise.

No, I have already put the laptop on different surfaces, everywhere the same

That would be a logical explanation for my problem, but why had the laptop at that time, when I've let the watch, no problems? I'm not quite sure yet.

You're actually describing a typical noise caused by a loose part in one of the speakers. It may be a small foreign body in the air gap in which the voice coil moves or not properly bonded site of the membrane or centering or whatever. There are even more conceivable causes and all do not disturb constantly, but depending on the music or frequency component, which stimulates the cause to swing, so resonated.

Take a picture of the noise so you can demonstrate and prove it.

You can also start a trial with a sliding sine tone. There are sound files that you can download and play:

https://www.hifi-online.net/sound-downloads/

In addition to a complete sine-sweap from 20 Hz to 20 kHz, further super test files are offered here

https://www.audiocheck.net/testtones_highdefinitionaudio.php

Or you use a free software generator that allows you to set any frequency. Here is a good tone generator:

https://www.heise.de/...pgen-24503

Install the software generator and start the program. Then you agree by hand the range from 100 Hz to 3 kHz, which should be enough, and pay attention to the noise. At some or more frequencies, the disturbance would have to occur, the exact frequency of which you can then tell the service technician so that he can reproduce the error.

If you can't reproduce the error in this way, you would have to troubleshoot again and look for other causes, but I currently do not come up with other options for the sporadic occurrence of disturbing sounds.

If it is a loose chip, movement can change the appearance.