Annabell
Have you tried the accessible spectrem analyzer?
http://depic.eecs.qmul.ac.uk/apm/spectrum.html
On 7/18/17, Tim Burgess <tim@xxxxxxxxxxxxx> wrote:
Hi,
With the best will in the world, I think you might be trying to run before
you can walk here. Albert's right that a language like c++ is probably best
suited to the job, but how much information you can get out of a
pre-existing (and highly graphical) application will depend more on what
tools the original programmer(s) used to create the application, rather
than
what tools you might have available. It might actually be easier to write
your own spectrogram application so that you can ensure its accessibility
right from the design stage. This would be an interesting project, but not
for the beginner, so I'd advise taking some classes for beginner
programmers
and see how you get on with it. You can argue that HTML doesn't class as a
"real" programming language, as it doesn't support decision-making very
well
and iteration not at all. However, it's still a useful thing to learn for
its own sake, so please don't let my comments discourage you in any way -
HTML still requires you to think carefully about what your code is going to
do and that's a key component of the programmer's mind set.
Best wishes.
Tim Burgess
From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Annabelle Susan Morison
Sent: Tuesday, July 18, 2017 3:18 PM
To: ddots-l@xxxxxxxxxxxxx
Subject: [ddots-l] Re: ddots-l What Programming Language Would I Use?
I'm starting to learn HTML. By the way, how would I obtain the spectragram
data that you describe? Would I have to do that with sighted help?
_____
From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On
Behalf Of albertm13@xxxxxxxx
Sent: Tuesday, July 18, 2017 7:05 AM
To: ddots-l@xxxxxxxxxxxxx
Subject: [ddots-l] Re: ddots-l What Programming Language Would I Use?
Hi,
I can't imagine dealing with such a dynamic and graphic thing with JAWS. I
think you need to get the spectragram data and process it yourself
including
doing some interpretations such as where peaks are and maybe how wide they
are.
Also, I think C/C++ would be the best language for this. What languages do
you know?
Albert
---------- Original Message ----------
From: "Annabelle Susan Morison" <foristnights@xxxxxxxxxxx>
Subject: [ddots-l] What Programming Language Would I Use?
Date: Mon, 17 Jul 2017 05:46:58 -0700
To create a non-visually-oriented spectragram? I'm hopefully going to make
ADX Trax Pro accessible to screenreaders, and I'm not sure how to configure
JAWS to recognize the components of a spectragram. One of the guys at
Audionamix, Steve Oliver, told me that the spectragram in ADX Trax Pro
consists of many shapes. Here's what he says.
<blockquote type="cite" class="">
Regarding the spectrogram: The spectrogram is a visualization of the actual
audio being processed. It is like a graph, where frequency (in Hertz) is
the
Y axis, and time is the X axis. Because the information is displayed
dynamically, based on the sounds within the file, there are no preset
shapes
like the ones you described.
For example, imagine an audio file of you speaking the sentence "Hi, my
name
is Annabelle" while a police siren goes by in the background. On the
spectrogram, your voice would appear as stacks of wavy lines (representing
the fundamental frequency of your voice and the corresponding harmonics
above it). Each word would have its own stack of wavy lines that would
change depending on the word and how you said it, and the unique
characteristics of your voice. Also there would be consonants sounds that
might look like patches of noise in the higher frequency range. The siren
would look like a long line slowly curving up and down from left to right.
If I said the words instead of you, these shapes would change because of
the
qualities of my voice, and what speed I spoke at.
For these reasons there are almost infinite shapes that could be displayed
in the spectrogram. Do you have any ideas how that might work with a screen
reader? We'd certainly like to make it possible.
</blockquote>
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