Re: sort of ot: what causes this issue?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



I use dOS because there is no speakup driver for the reading edge.



On Wed, 19 Jul 2023, John Covici wrote:

Again, what speakup synthesizer are you using? i.e. what is the value
of /sys/accessibility/speakup/synth ?  Does the reading edge honor
rts/cts handshake?

On Wed, 19 Jul 2023 09:56:10 -0400,
Karen Lewellen wrote:

[1  <text/plain; UTF-8 (quoted-printable)>]
I am unsure how this matters for my case.  I have an actual 9 pin
port, no USB involved.  That 9 pin is connected via cable to the
back of my reading edge...I make sure all of my computers have
actual serial hardware.



On Wed, 19 Jul 2023, Mike Ray wrote:





I've always suspected the hardware-handshake does not work
correctly on all USB to serial adapters.

In my experience those that are made with the FTTDI chipset are
the best, while the PL2303 devices are worse than useless.

The synth needs to be able to tell the computer when to stop
sending until the synth is ready to accept more. If this does
not happen it can result in garbled speech.





On 19/07/2023 11:58, Karen Lewellen wrote:
 Hi folks,
 for those who use serial synthesizers, what can cause garbled characters
 to be sent to the synthesizer?
 they are not on the screen,  and I am trying to troubleshoot how, with
 two different computers the problem starts after a while.
 Thanks,
 Karen




--
Michael A. Ray
Software engineer
Witley, Surrey, South-east UK

He/him/cis

"Perfection is achieved, not when there is nothing more to add,
but when there is nothing left to take away." -- A. de
Saint-Exupery






--
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

        John Covici wb2una
        covici@xxxxxxxxxxxxxx


[Index of Archives]     [Linux for the Blind]     [Fedora Discussioin]     [Linux Kernel]     [Yosemite News]     [Big List of Linux Books]

  Powered by Linux