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Scientific Discussion / Re: IEEE Spectrum - Reverse Engineering the "Cuban Sonic Attacks"
Last post by jsrtheta -
There has been at least one investigation, by Cuba. (It was naturally limited by a lack of cooperation by the U.S.,which may or may not have been justified.)

I would be interested in the reaction of those investigators, and vice versa, as to how this could in fact be done physically in the place where this allegedly happened. And how the effect was accomplished through numerous normal physical barriers and then affected some while not affecting others.
Scientific Discussion / IEEE Spectrum - Reverse Engineering the "Cuban Sonic Attacks"
Last post by Audible! -
Starting in 2016, various (mostly American and Canadian) diplomatic personnel have reported bizarre health effects, with symptoms so strange they were often not believed, and which are potentially even linked brain abnormalities in affected personnel. The Cuban government has (I'd suggest plausibly) denied any responsibility for the strange "attacks", and there seems to be no immediately obvious medical explanation for the symptoms.

In the official IEEE publication Spectrum, two enterprising US & Chinese professors and a grad student have put up a fascinating article providing a plausible explanation for the combination of audible noise and (potentially) detrimental health effects that might be linked to exposure to high powered ultrasonic devices, and most saliently, why ultrasonic devices would be used in a diplomatic context (to quash and/or engage in eavesdropping). In essence, their explanation boils down to Intermodulation Distortion causing the audible effects. Their Spectrum article is essentially distilling bits of their research paper manuscript (pdf direct link), (much of) the abstract of which I'll quote below:

Quote from: Yan, Fu & Xu 2017
We created a proof of concept eavesdropping device to
exfiltrate information by AM modulation over an inaudible ultrasonic carrier. When a second
inaudible ultrasonic source interfered with the primary inaudible ultrasonic source, intermodu-
lation distortion created audible byproducts that share spectral characteristics with audio from
the AP news.  Our conclusion is that if ultrasound played a role in harming diplomats in Cuba,
then a plausible cause is intermodulation distortion between ultrasonic signals that unintention-
ally synthesize audible tones.  In other words, acoustic interference without malicious intent to
cause harm could have led to the audible sensations in Cuba.

Fascinating Stuff!
3rd Party Plugins - (fb2k) / Re: Columns UI
Last post by fabiospark -
The reproduction it's not so reliable because sometimes
the problem doesn't show up.

I will do some testing to try and reproduce it consistently
so we will have some more clues, hopefully.

3rd Party Plugins - (fb2k) / Re: Columns UI
Last post by musicmusic -
So can you reliably reproduce it? Perhaps you could send me your config file (or export to an FCL file) and tell me which column you're editing, and what you're changing the display script to.
Ogg Vorbis - General / Re: Car Radio - OGG Vorbis Support?
Last post by sanskrit44 -
vorbis has been my lossy codec of choice for so many years, but you are right about android devices. with opus getting more and more popular, i hoped for a wide range of radios offering opus support. this to me seemed much more realistic than an ogg car radio in 2018. after all, the status of opus (hardware) is even more exotic than ogg ever was i think :)

i guess i will concentrate on a classic car radio with support for flac & high sdcard capacities then. this seems way more practical than a smartphone in combination.

concerning the lack of gapless playback, it is indeed a plague, especially when listening to (seamless) audiobooks.

thinking about what is important for me when looking for a new classic car radio:

+ should not be too expensive (under 100euros)
+ vorbis or opus codec support (incl tags)
+ good handling (intuitive way of selecting files/folders) / nice arrangment of buttons (skip, seek, mute)
+ clean interface / screen (no fancy blinking stuff, option to turn off ->> light on resources)

would be nice to have: gapless playback

well, that's it i think :)
General - (fb2k) / Re: How do I permanently make foobar2000 my default audio player in Windows 8.1?
Last post by camartinez1229 -
I'd normally agree, but I'm working with a 7-year old Dell laptop that has no official support for anything beyond Windows 8. Even 8.1 is not officially supported, but I gave it a try anyway, because I had to upgrade to a bigger hard drive, and figured if I was going to reinstall my OS, why not try something newer, especially since 7 is nearing its end. I won't attempt to install 10 on here, though, because there are no Dell Windows 10 drivers for my model, and no official manufacturer Windows 10 driver for my WiFi card, which is a deal-breaker.
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