[BRLTTY] Monotonous espeak after brltty update

[Eric Scheibler]

Hello,

I've updated to Brltty version 5.4 from the Debian repository. Now the speech output sounds very
monotonous (using the brltty-espeak package).

My espeak parameters are:
speech-parameters es:Voice=de,es:maxrate=800,es:punctlist=/-.{}

But it happens with all German and English voices and different speed settings. Next I tried the
latest Brltty from the master branch but the problem persists.

The espeak command itself still works as expected and sounds well:
espeak-ng -v de -s 520 -w output.wav "Hallo Welt" && aplay output.wav

My installed, espeak-related packages are:
s10 /tmp% dpkg -l | grep espeak
ii  brltty-espeak                         5.4-3                               amd64        Access software for a blind person - espeak driver
ii  espeak                                1.48.04+dfsg-5                      amd64        Multi-lingual software speech synthesizer
ii  espeak-data:amd64                     1.48.04+dfsg-5                      amd64        Multi-lingual software speech synthesizer: speech data files
ii  espeak-ng                             1.49.0+dfsg-2                       amd64        Multi-lingual software speech synthesizer
ii  espeak-ng-data:amd64                  1.49.0+dfsg-2                       amd64        Multi-lingual software speech synthesizer: speech data files
ii  libespeak-ng-dev:amd64                1.49.0+dfsg-2                       amd64        Multi-lingual software speech synthesizer: development files
ii  libespeak-ng-libespeak-dev:amd64      1.49.0+dfsg-2                       amd64        Multi-lingual software speech synthesizer: development files
ii  libespeak-ng1:amd64                   1.49.0+dfsg-2                       amd64        Multi-lingual software speech synthesizer: shared library
ii  libespeak1:amd64                      1.48.04+dfsg-5                      amd64        Multi-lingual software speech synthesizer: shared library

The old espeak package is still required by the speech dispatcher and therefore not removed yet.

Thanks
Eric