> I've seen articles calling this story into question -- the biggest red
> flags
> being, almost all the audio codecs used for ringtones have low pass
> filters
> waaaaay below frequencies that would supposedly be inaudible to 25-35 yr=
> old
> teachers(!)... and the relatively low quality of the speakers in the
> phones
> as well.
mmm, i dunno - i used a self-composed ringtone for a while what was the
single highest tone i could get out of my phone. i did this because i
worked in a very loud wood-workshop, and i was able to hear/feel the high
pitch over the noise of the running machines (i have very sensitive
high-frequency hearing, even at the ripe old age of 31). and while it may=
not have been high enough to truly be out of anyone's range of hearing, it=
was certainly unexpected and minimal enough that most people didn't notice=
it, and if they did, certainly didn't know it was a phone. like television=
s
on in standby mode (they drive me crazy...).
and also fwiw, yes, this phone had a vibrate function, but i can never feel=
phones vibrating through clothes...
patrick
--
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"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg
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