Tone Deafness

Op Fri, 16 Aug 2013 19:29:57 +0200 schreef Jan Panteltje
<pNaonStpealmtje@yahoo.com>:
> On a sunny day (Fri, 16 Aug 2013 10:23:30 -0700) it happened NotReallyMe
> <nrm@vallidatedsoftware.com> wrote in <b775gjFnccgU1@mid.individual.net>:
>
>> Tim Wescott wrote:
>>> Like a good percentage of human males, I'm partially color blind to  
>>> green
>>> and red.  In my case, it's enough that I can't tell the difference
>>> between a green or a red LED -- so a piece of equipment that depends on
>>> the operator being able to see the color of a bi-color LED is totally
>>> useless to me.
>>>
>>> Needless to say, this is irritating.
>>>
>>> Does anyone on the group know how many people are really, truly tone
>>> deaf?  I don't just mean unable to hear when they're playing out of  
>>> tune,
>>> but people who are unable to tell the difference between a "beep" and a
>>> "boop" when it's coming out of a piece of electronic equipment?
>>>
>>> I'm thinking of communicating status via a beeper, and for obvious
>>> reasons I don't want to do the same "bicolor LED" crap to someone, only
>>> with sound.
>>>
>> Too lazy to read all the posts, but a 1 second long solid tone is very
>> different from 3 short tones.
>>
>> Or as they use in the movies, blink (beep) once for yes, twice for no.
>
> beep  beep  beep

The White Walkers are coming!


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On 08/14/2013 05:24 PM, Tim Wescott wrote:
> Like a good percentage of human males, I'm partially color blind to green
> and red.  In my case, it's enough that I can't tell the difference
> between a green or a red LED -- so a piece of equipment that depends on
> the operator being able to see the color of a bi-color LED is totally
> useless to me.
>
> Needless to say, this is irritating.
>
> Does anyone on the group know how many people are really, truly tone
> deaf?  I don't just mean unable to hear when they're playing out of tune,
> but people who are unable to tell the difference between a "beep" and a
> "boop" when it's coming out of a piece of electronic equipment?
>
> I'm thinking of communicating status via a beeper, and for obvious
> reasons I don't want to do the same "bicolor LED" crap to someone, only
> with sound.
>

Sorry for being so late to the thread. About 2 weeks ago, something 
happened to my right ear. I had been shooting earlier, but I was wearing 
plugs and shooting lighter guns, so i don't think that was it. I had 
been swimming a *very* little. Barely got my hair wet.

Anyway, tones in my right ear became frequency shifted, and they were 
louder than the right ear. Things sounded *weird*. This condition 
declined over about 4 days.

Had this condition been permanent, different tones of warning beepers 
would have been maybe a little useful at best. I have heard that 
cochlear implants produce weird tones.

On 08/25/2013 11:49 PM, bbhack wrote:
> On 08/14/2013 05:24 PM, Tim Wescott wrote:
>> Like a good percentage of human males, I'm partially color blind to green
>> and red.  In my case, it's enough that I can't tell the difference
>> between a green or a red LED -- so a piece of equipment that depends on
>> the operator being able to see the color of a bi-color LED is totally
>> useless to me.
>>
>> Needless to say, this is irritating.
>>
>> Does anyone on the group know how many people are really, truly tone
>> deaf?  I don't just mean unable to hear when they're playing out of tune,
>> but people who are unable to tell the difference between a "beep" and a
>> "boop" when it's coming out of a piece of electronic equipment?
>>
>> I'm thinking of communicating status via a beeper, and for obvious
>> reasons I don't want to do the same "bicolor LED" crap to someone, only
>> with sound.
>>
>
> Sorry for being so late to the thread. About 2 weeks ago, something
> happened to my right ear. I had been shooting earlier, but I was wearing
> plugs and shooting lighter guns, so i don't think that was it. I had
> been swimming a *very* little. Barely got my hair wet.
>
> Anyway, tones in my right ear became frequency shifted, and they were
> louder than the
left
> ear. Things sounded *weird*. This condition
> declined over about 4 days.
>
> Had this condition been permanent, different tones of warning beepers
> would have been maybe a little useful at best. I have heard that
> cochlear implants produce weird tones.
>
>
>

On a sunny day (Sun, 25 Aug 2013 23:49:09 -0500) it happened bbhack
<bbhack@gmail.com> wrote in <a7BSt.277397$Dd5.202739@fx09.iad>:

>Anyway, tones in my right ear became frequency shifted, and they were 
>louder than the right ear.

Yes that IS a dillemma.
;-)

On Sun, 25 Aug 2013 23:49:09 -0500, bbhack wrote:


> Sorry for being so late to the thread. About 2 weeks ago, something
> happened to my right ear. I had been shooting earlier, but I was wearing
> plugs and shooting lighter guns, so i don't think that was it. I had
> been swimming a *very* little. Barely got my hair wet.
> 
> Anyway, tones in my right ear became frequency shifted, and they were
> louder than the right ear. Things sounded *weird*. This condition
> declined over about 4 days.
> 
> Had this condition been permanent, different tones of warning beepers
> would have been maybe a little useful at best. I have heard that
> cochlear implants produce weird tones.
>

That sounds like a group cell death in the auditory ganglion and 
subsequent re-routing.  Rather uncommon but not unheard of (incidental 
pun acknowledged).  The nervous system is a marvelous thing.

?-)

In comp.arch.embedded Tim Williams <tmoranwms@charter.net> wrote:

> - An extra second between blinks indicates the second digit (thus 
> expressing numbers 11-99 except whole multiples of 10, since there's no 
> zero)

Strange, I would code "0" as ten pulses.

AW

In comp.arch.embedded Martin Brown <|||newspam|||@nezumi.demon.co.uk> wrote:

> If you count realtime Fourier analysis with additional temporal 
> resolution on transients beyond what classical signal processing permits 
> then yes they are "simple" hardware. In practice it is a lot harder than 
> that and the ear is easily fooled by auditory illusions like the forever 
> rising tone in shades of Escher.
> 
> http://en.wikipedia.org/wiki/Shepard_tone

Here you can find even more examples:

http://listverse.com/2008/02/29/top-10-incredible-sound-illusions/

AW

In comp.arch.embedded Michael A. Terrell <mike.terrell@earthlink.net> wrote:

> If it's already lit for that minor problem, it can't alert you 
> to more important things.

Suzuki Hayabusa (a motorcycle) has two levels of "check engine" (actually 
"FI") importance. When the "FI" LED lights steady, it's a minor problem 
and you can ride, ECU just substituted the signal from a failed sensor 
with a reasonable constant. When it flashes, it's fatal and engine is 
stopped.

AW

In comp.arch.embedded Charlie E. <edmondson@ieee.org> wrote:

> Even better is my car.  When it hits around an eighth of a tank, it
> 'stutters', i.e. it reduces the throttle for a few moments,

Are you sure that it's a firmware feature and not just fuel pressure 
issue?

AW

"Adam Wysocki" <gof@somewhere.invalid> wrote in message 
news:gof.1377715298.21948@somewhere.invalid...
> In comp.arch.embedded Tim Williams <tmoranwms@charter.net> wrote:
>
>> - An extra second between blinks indicates the second digit (thus
>> expressing numbers 11-99 except whole multiples of 10, since there's no
>> zero)
>
> Strange, I would code "0" as ten pulses.

Yes, that would be logical.  Didn't matter in the present case, as codes 
were pairs of digits, each enumerating a condition, not together as an 
actual numerical quantity.  As I recall, the first digit was subsystem 
(ECU, ABS, etc..), second identifies what (oxygen sensor, ignition, 
etc..).  If one system had more than 9 error codes, dunno... they might've 
just keep blinking it?  Of course, most systems had only a few codes each, 
so most of the numbers that could be expressed weren't needed.

Tim

-- 
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Website: http://seventransistorlabs.com