At 04:38 PM 6/7/2006 +0530, you wrote:
>This is indeed a neat method to help the blind people. I feel that (in
>Berlin)the vehicle noise zipping near by would easily distort the soft beep
>sounds. May be blind people have very sharp ears.
>
>In my country this will not work out due to vehicle noise.... and not to
>mention people honking at each other.

The ones in Hong Kong are *very* loud, and so is the traffic noise. More of
a raucous clacking than a "soft beep". I have also heard more pleasant ones
that sounded like an electronic bird tweet, but I can't remember where.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
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