I don't know. I remember older PC's of the 486 to Pentium era making different noises via bad active speakers, or even in the FM-Radio. Especially during uncomp

I don't know. I remember older PC's of the 486 to Pentium era making different noises via bad active speakers, or even in the FM-Radio. Especially during uncompressing some stuff, but also different operations in different programs. The same can often be said for todays onboard sound, no matter if via headphones, or active speakers. That's why some people are saying use the cheapest USB-sound-dongle, and enjoy decoupled sound, otherwise enjoy the buzz of your system-busses. Also mainboard makers advertising some sort of shielding for the audio chip from the rest of the board, for the same reasons. Memcopy produces a pattern on the memory-bus, which may be audible under some circumstances. Using a different pattern may "sound" different, or not all. shrug