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- Silent Ring Tone Scam ??
- Phil Allison
September 21, 2006, 5:52 am
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Hi to all,
the latest "ring tone" being offered for mobile phones claims to be
"silent" to all adults, teachers and parents.
The TV ad says it is a 17 kHz tone.
Is this for real ???
Can a GSM mobile output such high frequency ?
Will its speaker reproduce it at audible level anyhow?
Re: Silent Ring Tone Scam ??
Might be able to replace those high dollar tweeters with mobile phone
I don't know how loud it would be, however, it is being advertised widely
now. I can only clearly hear to 10KHz on a sine wave, I get 12 - 16KHz on
1/3 oct Pink Noise. Why is there a difference. What I do notice is that even
though I cannot hear the higher frequencies, I am left with a very specific
feeling in my ears if I do play pink noise at the higher frequencies for
more then a few seconds even though the volume is not high.
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