Voxin: Shorter pauses at the end of sentences

[Cleverson Casarin Uliana]

Hello all, I can open an issue on GitHub for the following request, if 
you find it more convenient:

When using the IBM ViaVoice synth for Windows with the NVDA screen 
reader, there is a configuration option called Shorten Pauses, which 
causes the voice to make much shorter pauses at the end of sentences and 
utterances in general than it would with that option unset. In a Linux 
desktop, using Orca plus speech-dispatcher and the Voxin distribution of 
the IBM TTS, nowhere there is such option to shorten pauses: neither in 
Orca, nor in speech-dispatcher or voxin settings.

I've looked at a glance in the source code of the NVDA driver for the 
synth, and it appears that that pause feature is implemented using some 
regular expressions, although I don't know exactly how it interacts with 
the synth or NVDA itself. In any case, I wonder if you could give a look 
at the NVDA implementation and replicate this feature on the 
Speech-dispatcher voxin module. Interaction with Orca in Linux would be 
significantly faster, especially when reading long texts, because for 
each long pause Orca does at the end of an utterance, the user wastes a 
little more time.

Below is the URL for the NVDA driver, and also a second link pointing to 
the Python file where the feature seems to be implemented:
https://github.com/davidacm/NVDA-IBMTTS-Driver
https://github.com/davidacm/NVDA-IBMTTS-Driver/blob/master/addon/synthDrivers/ibmeci.py

Thanks,
Cleverson