I get no additional noise and these have been "strained" without failing.

At first this cord created a loud buzzing noise, and I was so disappointed.

It works as advertised with no audible noise added compared to the stock cable, and plus, it's even longer than the original, so it's an upgrade from what we started with

They added a ton of static to my surround sound plus an odd whining noise

Also, they don't pick up weird buzzing or noises or stuff

Loud static noise can be heard playing from the speaker when just this cable is plugged into the speakers.

Makes a very bad hissing noise when using headphones

Nice solid "click" when plugging things into it, no noise when twisting or turning it, and it hasn't cut out once, and it is very difficult to tangle up

Nice solid "click" when plugging things into it, no noise when twisting or turning it, and no interference despite it running parallel with AC cables for almost its entire length.

As soon as I powered on the computer all I heard was a loud humming noise

Buzzing noise is too loud to want to use these.

Static noise when it's moved

but when I got it out of the box it created a loud buzzing noise when plugged in

Does the job without introducing noise into the signal like some cheaper cables.

Makes a humming noise

Now I can play anything I want as loud as I like