emacspeak

[Adam Myrow]

If you are using the Dectalk Express with Speakup, you can't use it with
Emacsspeak at the same time because Speakup takes over the serial port and
makes it not exist to the kernel.  You'll have to add an entry to Lilo
that boots your system and passes "speakup_synth=none."  Then, boot with
that entry when you want to use Emacsspeak.  Alternately, use a different
synthesizer for Emacsspeak from Speakup.  For example, Via Voice Outloud
with Emacsspeak and the Dectalk Express with Speakup.  Good luck.