driving a serial synthesizer through speech-dispatcher

[John Covici]

You might need to write a driver in speech-dispatcher, that would do
exactly what you want.  I have been thinking about this for years, but
never had the time to do it.

On Thu, 06 Feb 2020 19:01:27 -0500,
Gregory Nowak wrote:
> 
> Hi all.
> 
> I'm wondering if it's possible to drive a serial synthesizer through
> speech-dispatcher? My goal here is to use orca to output to a serial
> synthesizer.
> 
> While speech-dispatcher itself has no facility a far as I can tell to
> communicate through serial ports, something like cat could be used to
> send a text of string to the serial port for the synthesizer to
> speak. This is crude, and there is no way to interrupt speech until it
> completes.
> 
> An even better approach is to use
> /sys/accessibility/speakup/synth_direct for the speech output. This
> would use speakup settings in use for the synthesizer. The problem
> with this is the same as with the cat command; no way to interrupt
> speech, at least until the todo items in /sys/accessibility/speakup
> are resolved, and maybe not even then. Interrupting could probably be
> done by sending the silence command for the synthesizer in question to
> /sys/accessibility/speakup/synth_direct, to cause the synthesizer to
> stop speaking, and flush its buffer. Again, simply invoking speakup's
> interrupt command by sending something to
> /sys/accessibility/speakup/filename would make this synthesizer
> generic.
> 
> Has anyone here done what I'm thinking of? If yes, can you please
> describe your approach?
> 
> Greg
> 
> 
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         John Covici wb2una
         covici at ccs.covici.com