[BlindMath] What does the largest one-day drop in market value sound like?

vincentfmartin2020 at gmail.com vincentfmartin2020 at gmail.com
Fri Aug 3 02:19:25 UTC 2018

What Ed is utilizing is called sonification and it is a true discipline in
itself.  It is a field that is still in its infancy, so there is still no
consensus on how to do many of the things that you are requesting.  I
studied under Dr. Bruce Walker in the sonification lab and earned a couple
of graduate degrees at Georgia Tech in graduate school from 2010 to 2017.
We utilized multi-modal approaches toward research, but mostly the research
was based upon how to represent information in the most efficient and
effective way utilizing sound, whether it is speech or non-speech.
Non-speech audio is what was being utilized to sonify the dataset that Ed
utilized.  SAS basically incorporated the Sonification Sandbox (a tool
developed in Dr. Walker's lab)  into their display engine to create a
phenomenal tool for representing data.  Since it was done, I have used it to
make all my .   
Sonification really helps people that can actually see a lot and is very
prevalent in our everyday environment.  There are many instances where the
visual representation of data is entirely too difficult or does not afford a
person the actual information necessary to make adequate analysis.  This is
when sonification really stands out.  You can also spot outliers or other
changes in direction in data much easier with very large datasets.  Another
benefit is the speed that you can analyze data.  I had access to a Tiger
embosser when I worked as a research scientist, but it took a very long time
to get the graphs I needed in the correct format to read.  The cost of the
embosser was also very prohibitive for a single person to own and many
school systems don't even purchase them.
If you are a student, then you can get free access to the student version of
SAS and the graphics accelerator is in it.  As a data scientist, you can do
virtually everything you need with Python and with SAS to also do data
analysis, you could probably work in this arena.
There is also research being done to help with the descriptions of graph as
well.  Sometimes just knowing what the graph looks like, along with the name
can make understanding a sonified graph quite easy.  When you have to use
this to hemp with your interpretation of data, it is almost a necessity to
utilize every tool necessary.
Here are a few links to get you started.  Let me know if there any questions
I can answer for you and there is also another alumni of Dr. Walker's lab
that is on this list that is sighted who has done extensive work trying to
display data with sound
I have added a few links at the end of this message that you can use to get

PS- In seven years of teaching undergraduates in class or conducting
research and over many, many studies, I asked many participants a simple
question when I was explaining what the rationale was for my research was.
I asked them how I determined which elevator to enter when I pressed a
button in a large lobby.  In seven years, no sighted person ever got it
right.  Four times I had people answer that I listened for the sound.  No
one could ever tell me what the sounds were and what they meant.  Once I
told them, I would be routinely stopped on campus by them and told that I
was exactly right about those elevator sounds.  A great audio design does
its purpose and hides in the background.  


The sonification Handbook

International Community for Audio displays

-----Original Message-----
From: BlindMath <blindmath-bounces at nfbnet.org> On Behalf Of Sabra Ewing via
Sent: Thursday, August 2, 2018 8:53 PM
To: Blind Math list for those interested in mathematics
<blindmath at nfbnet.org>
Cc: Sabra Ewing <sabra1023 at gmail.com>; Pranav Lal <pranav.lal at gmail.com>
Subject: Re: [BlindMath] What does the largest one-day drop in market value
sound like?

Wow, that chart made a lot of sense to me and I normally can't read charts
very well. What I got out of it was that at the beginning of the quarter,
they were making a good amount of money. Near the middle of the quarter, the
earnings went way down, and then they abruptly went up to around where they
were at the beginning of the quarter. Then, they slowly went up and at the
end of the quarter, the earnings were higher than they were at the beginning
of the quarter. Am I right? I am looking to go into the field of data
analysis. Do you know what would be the best way to access charts and that
field? I need the charts to be like this the way that you make it. I do not
need any of these tactile charts. It does not have to be a piano, but it
needs to be the same where it can draw it in my mind. I want what you are
saying where I can navigate the chart using the keyboard, I can listen to
the chart, I can get the numbers from it, I can listen to certain portions
of the chart, and I can maybe even connected with a spreadsheet. I would
like to have things on a spreadsheet that I can turn into a chart that I can
listen to and also show to people. I need to chart to go from left to right
in the earphones the way that you have it, and I would even be interested in
charts that use 3-D recording. Also, I would like a feature in Aira where an
agent can send me a picture or a chart that I can listen to. I would also
love to be able to switch between my computer and my phone when dealing with
these charts, have it integrated with collaboration tools if I am working on
a data set with the team, and so forth. Do you know what I could do to get
into this field? I would also like to know why I can't read any tactile
pictures, graphs, or maps even though I was born blind and had lots of
training to try to teach me, but I can listen to complicated charts and
pictures without training? I even listened to this one picture that was
rotating. Also is it possible to sound code things the way that sighted
people colorcode them? Like how they might put important points in a
different color or put certain portions of the chart in a different color?Or
if Aira cannot actually link up with a piece of software, it would be cool
if the agents could receive training to be able to sing you a picture or a
chart although that might be a bit harder if you have no way to make it go
left to right.

Sabra Ewing

> On Aug 2, 2018, at 6:22 PM, Pranav Lal via BlindMath
<blindmath at nfbnet.org> wrote:
> Hi Ed,
> Very cool. Do the beeps indicate the y axis? I am confused by the 
> higher pitch which seems to be indicating a lower value? That is, the 
> higher the pitch the lower the value or is it that the value kept 
> climbing and then just stopped?
> Pranav
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