Unfortunately this is true. Eloquence is actually Sapi 4 based not
Sapi 5 based. The Dectalk has its own API. Although Fonix did produce
a Sapi 5 compatible version of Fonixtalk, AKA Dectalk, for a while.
However, it is my understanding they discontinued the Sapi 5 version
of Fonixtalk.

The best way to support Eloquence is to purchase an SDK for it and
wrap Viavoice Outloud directly. It is pretty simple to do and the API
for Eloquence AKA Viavoice Outloud is very straight forward for a C++
developer. Problem is that the SDK costs quite a bit to license.


On 1/20/11, Damien Pendleton <dam...@x-sight-interactive.net> wrote:
> Hi Dark,
> Synth voices like Eloquence and Dectalk are hard to get for SAPI 5 though. I
> tend to find with SAPI that you go from one extreme to the other. Either a
> low-sampled, quick but hard to understand one, or a high-sampled, large,
> slow, laggy, easy to understand one. However they all seem to be
> sample-based rather than formant-based.
> Regards,
> Damien.

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