[comp.sys.ibm.pc.hardware] COVOX Speech Thing and parallel port

jat@cbnewsl.att.com (gerard.a.theisen) (08/16/90)

I recently purchased the Speech Thing made by COVOX, Inc.  It is
a speech synthesizer that comes with the hardware, software and
amplifier/speaker.  It produces surprisingly good quality speech
for a low priced product ($69).  The hardware consists of a parallel
adaptor (heretofore referred to as STadaptor) that plugs into the
parallel port of a PC; the printer cable may
then be plugged into the STadaptor.  Two wires go out the side of the
STadaptor to the amplifier/speaker.  There are no internal cards that
have to be installed.

The problem is this: when I do not plug the printer into the STadaptor,
I hear a lot of scratchiness in the speech produced.  If I plug the
printer into the STadaptor without turning on the printer, the scratchiness
goes away, but the volume decreases.  When I turn on the printer, the
scratchiness is still gone, but the volume almost doubles.  Does
anyone know why the sound quality would be so much better when the
printer is plugged into the STadaptor and turned on?  And is there some
type of additional adaptor/cable/plug that I can buy or build that I can plug
in instead of a printer that will will fool the STadaptor
into thinking a parallel printer is connected?

In case you need to know, I connected the Speech Thing to a Toshiba
T100SE laptop.  The reason I want this to work without plugging in a
printer is so that I can use the Speech Thing without carrying a printer
along.  I hope I stated my case clearly enough for someone to understand
what I'm asking.  Thanks for your help.

Jerry Theisen
!att!tarpon!jat