Calum Mackay wrote: > I was asking whether it's theoretically possible to hear noise at that > low level. Of course, it depends on the reference level, but even so... > seems like a reasonable question.
Sound does not have an absolute level. Its defined as a ratio of signals/sound/power. Humans can hear roughly 100 dB of difference, best case. More realistically, 70dB is about it. If you are listening to something at 0 dB and something is added -140 dB below it, there is zero chance a human can tell if its there or not. For reference, +140 dB A scale is military jet takeoff, space shuttle takeoff, etc. It causes deafness in very short exposure. A quiet living room is maybe 30 to 40 dB A scale. Add 100 dB of music to it and your ears bleed. -- Pat Farrell http://www.pfarrell.com/ _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles