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Re: [orca-list] Why feedback of Orca in OS Linux is Annoyingly slower than NVDA in OS Windows? What Should I do for it?

If I might offer a suggestion, I think flat review commands should by
default review the text of the current object with focus, not the
current window. The command for entering and leaving flat review could
be changed to a toggle for reviewing either the current object, or the
screen. This is similar to the approach used by NVDA. This approach
will have the following advantages:

* When reviewing the current object, users probably won't care which
content is on the screen or not. This may even allow users to review
text in a text editor which are currently off-screen, which may be
useful when reading one part of a document whilst editing another.
* Therefore it will be more performant, and solve the case for reading
the current character or word.
* Restricting oneself to one object would allow one to review, for
instance, the text of a terminal without the menu bar and scroll bars
being part of the reviewed text.
* In the long term this could be tied into object navigation
functionality, allowing the user to change the robject under review
without having to move the system focus. I currently have a PR open
for object navigation functionality, I'll be happy to adapt that work
to tie into a review mode as described above.

Regards,

Rynhardt

On Sat, Jun 12, 2021 at 6:42 PM Joanmarie Diggs <jdiggs igalia com> wrote:


Reading web pages via flat review will never be as performant as
reading them via browse mode (e.g. ctrl+left and ctrl+right for
words). The reason why is that building up the flat review context in
web content is a huge undertaking because we don't know what is on the
screen versus not on the screen until we've examined the entire
accessibility tree. So the short answer is: Prefer browse mode as the
way to read web content. But that, of course, does then raise the
question of what one should do to hear the current word (or character
or line) again?

We either need to make new non-flat-review commands for read the
current whatever, or we change the understanding of how the read the
current whatever commands work. The former would involve new
keybindings; the latter would mean Orca would not use flat review to
read the current word if you weren't already in flat review. As a
result, if what you wanted to do was review the current word rather
than read the current word, you'd explicitly have to entire flat review
(e.g. via KP_Minus) first. Each option has pros and cons. If we can get
consensus, I'll make the change.

On Sat, 2021-06-12 at 09:31 +0430, Shadyar Khodayari via orca-list
wrote:

I do not use VM also I do not run Linux from flash or dvd. I have
installed it. often eg. when I use flat review to read word by word
on
a web page - Firefox, Orca  interrupts for about one or two seconds
before responding. On general windows Orca does not read characters
correctly when using flat review char by char.

On 6/11/21, Rastislav Kish via orca-list <orca-list gnome org> wrote:

Hello Shadyar,

as for the Orca slowness, aren't you running the system in a VM or
from
a linux DVD?

This sounds to me like what I was experiencing when doing the above
mentioned, those slowdowns were happening independently of
operating
system run in the VM.


Also, you might want to check out the responsiveness of your
keyboard.
Try for example to pause and resume playback of music in VLC, if
you
notice the Orca-like latency, you have problem there.

Some distributions have an option to slower the keyboard
responsivity,
don't ask me why. :) If you have activated it somehow, that might
be
causing troubles.


And one more thing. Some soundcards have a tendency to fall asleep
when
no sound is playing. This may not sound like a big thing, but it
can
really slow down the whole responsiveness, in some cases even make
it
unusable.

One my friend was complaining some time ago, that Jaws on his
Windows
machine is very slow. I have installed Silenzio and voila,
everything
was magically working!

Try to play some music or other continuous sound in the background
to
keep your soundcard busy and try the responsiveness again.

If it improves, we can discuss further in this direction to find
the
most appropriate solution.


If nothing of this resolves your issue, and there won't be any
ideas
from others on this list, you can, as the last resorrt try to
reinstall
the system.

Latency is definitely not something typical for Linux, in fact,
it's the
exact opposite and that goes for Orca as well. On my computer, it's
ligthning fast.


As for the Linux environment and its descriptions, well, this is
somewhat complicated. From Windows, you're probably used to having
just
one layout, one desktop, one default software setup, dictated by
the
all-mighty company behind the system, which doesn't allow anyone to
interfere with its orders.


Linux is different. There is no general authority, no closed
components
owned by companies or individuals and no dogmas the system would
have to
follow.

Therefore, there is nothing like a single Linux environment. We
have
many different environments like Mate, Gnome, Mint, Plasma or LXDE
and
every of them has different interface.

In fact, the differences go even deeper, to the core of the system
- we
have many Linux distributions, like Debian, Ubuntu, Arch, Fedora or
OpenSUSE, taking different approaches on how should the system look
like
"under the hood".


So, as you can see,there is nothing like a single Linux or Linux
environment, and therefore nothing like a single guide and single
set of
shortcuts to learn, everything depends on your exact system
construction.


Having that said, it's usually not very difficult to find the
relevant
instructions, just search for your favourite distribution and
check,
what layout it uses and what shortcuts are set by default.

If you want to help others joining Linux by guides, you have the
advantage that you can pick a specific setup and guide the readers
on
how to use it, so that's of course a way to go.


Best regards


Rastislav


Dňa 11. 6. 2021 o 15:43 Shadyar Khodayari via orca-list napísal(a):

I mean, it responds late, not reads slow.
Is there a method to optimize the speed of Orca response?
I am using Ubuntu latest LTS version with Mate desktop.
I intend to contribute in Orca project but firstable I should
know its
abilities I.E. what it can do and what not so.
I believe that Orca user guide wiki needs more details to use
Orca and
a description about itself Linux environment.
Blinds users some times might not have any imagine of Linux
environment, specially if they used to be Windows users.
eg. I myself did not know Gnome has two bars in top and bottom -
panels not like OS windows that has one bar - task bar also I did
not
know word panel is the same bar in windows. and ETC.
If I have a good command of the using Orca, I will write my
experiences to help new users specially users who immigrated from
Windows.

Shadyar
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Orca wiki: https://wiki.gnome.org/Projects/Orca
Orca documentation: https://help.gnome.org/users/orca/stable/
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https://help.gnome.org/users/gnome-help/stable/a11y.html


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Orca wiki: https://wiki.gnome.org/Projects/Orca
Orca documentation: https://help.gnome.org/users/orca/stable/
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https://help.gnome.org/users/gnome-help/stable/a11y.html



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Orca wiki: https://wiki.gnome.org/Projects/Orca
Orca documentation: https://help.gnome.org/users/orca/stable/
GNOME Universal Access guide: https://help.gnome.org/users/gnome-help/stable/a11y.html
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