Maker Pro
Maker Pro

Blow your laptop?

W

William Sommerwerck

Jan 1, 1970
0
The idea makes sense for paralyzed people -- but I don't see how a single
mic could provide the information needed to accurate localize the intended
point.
 
C

Charles

Jan 1, 1970
0
William Sommerwerck said:
The idea makes sense for paralyzed people -- but I don't see how a single
mic could provide the information needed to accurate localize the intended
point.

You have assumed a single transducer? I agree with your premise, however.
 
J

John Tserkezis

Jan 1, 1970
0
William said:
The idea makes sense for paralyzed people -- but I don't see how a single
mic could provide the information needed to accurate localize the intended
point.

This is not new, it's been done before.

Used first when CRT monitors were all the rage, four strain gauges on the
base of the monitor would sense where the monitor was being pushed with your
finger. (monitor would sit on a box that does the sensing).
The calibration procedure would ask to press the four corners of the screen,
and values would be interpolated for inbetween positions.

It was intended as an alternative touch screen interface for monitors that
did not already come with a touch interface, or would not otherwise lend
themselves easily to touch-interfaces.

Making something like that sensitive enough to measure blows is stupid. If
you sneeze, you could end up sending those 16 emails to the boss telling them
what you REALLY think of them.

If I'm not sounding cynical enough, how about: Snotr. (acronym for Yet
Another You-Tube).
I saw it on the internet, so it MUST be true.
 
W

William Sommerwerck

Jan 1, 1970
0
You have assumed a single transducer?

No assumption. That's what the video shows.

Perhaps is it _is_ an elaborate joke.
 
B

bz

Jan 1, 1970
0
Meat Plow said:
Yes but with more than one mic.

I can envision how it could be done using ultrasonic chirped signals from
the two speakers to 'image' the face from echos.

The blowing would produce a wide band noise that extends into the
ultrasonic region also.

With proper processing and intelligence, it might be possible to locate the
'spot' being targeted through the use of two speakers and one mike.







--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

[email protected] remove ch100-5 to avoid spam trap
 
M

Meat Plow

Jan 1, 1970
0
I can envision how it could be done using ultrasonic chirped signals from
the two speakers to 'image' the face from echos.

The blowing would produce a wide band noise that extends into the
ultrasonic region also.

With proper processing and intelligence, it might be possible to locate the
'spot' being targeted through the use of two speakers and one mike.

That's possible however they didn't really mention speakers and are laptop
speakers capable of reproducing ultrasonic sounds? Maybe if they were no
more than say 20khz.
 
O

Only Just

Jan 1, 1970
0
Meat Plow said:
That's possible however they didn't really mention speakers and are laptop
speakers capable of reproducing ultrasonic sounds? Maybe if they were no
more than say 20khz.

As well as all that could it make a difference to the consistency of the
blow, being the same strength, pressure, diameter of the lips when blown and
duration ?? I am sure all this would make some difference to the result.
Justy.
 
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