no way to tell?
Since our hearing is generally peaking at 20khz, seems most sound repro systems don't go much above that.
But, assuming (no idea) live human voices actually carry recognizable higher harmonics, could devices not use special microphones that recognize their absence and therefore infer that it's listening to a recording or broadcast?
As an added bonus, folks with Monster cables or the $30K stereos could still get dinged!
Biting the hand that feeds IT
