& SAPI5 Speech Engines
Speech page - has links to download SAPI
5.1 and SAPI
4.0a SDKs (which include both SR and TTS engines from Microsoft). The
SAPI 5.0 SDK also works but it appears to be no longer available.
TTS engines from the Microsoft Agent Download Page - download the Lernout
& Hauspie TruVoice American English TTS engine (1MB) and ten Lernout
& Hauspie TTS3000 TTS engines, each one over 2MB (UK English, French,
German, Spanish, Dutch, Italian, Russian, Korean, Japanese, Portuguese).
This page also has links to other SAPI4-compliant speech engines.
IBM's ViaVoice runtimes - either from
an installation of ViaVoice (Version
9 has been tested with this implementation) or with the ViaVoice
SDK. SR and TTS engines.
NaturallySpeaking (SR) - large range of languages available. NaturallySpeaking
Essentials is the cheapest option for getting the Dragon SR engine
(the more expensive versions seem to offer more features on top of the
common SR engine). Note that you will need to ensure that the Dragon NaturallySpeaking
application is NOT running in order to be able to use the SR engine with
330 TTS engine - a good quality TTS engine but with some bugs in the
SAPI4 interface that cause phrases to be ended prematurely and word events
to be reported incorrectly. The word-event bug can be got around for now
by calling CGEngineProperties.useFixForInfovox330(true).
AT&T NaturalVoices TTS engines -
very good quality but hard to purchase directly. Nextup.com
will sell the two default voices for $25 as an upgrade to one of their
products, or separately for $35 here.
These engines have not been tested by Cloudgarden, but users have reported
that they work well.
TTS engines - if you contact Loquendo they can send you an evaluation
copy of their SAPI5 TTS engines, and you can later purchase licenses from
them for their engines. The "Susan" voice has been tested with the JSAPI
- it sounds lifelike and works fairly well.
Speech SDK 2.0 (SR) - 90 day trial. (Note: Philips Speech SDK version
3.0 is not SAPI4 or SAPI5 compatible, so will not work
with Cloudgarden's JSAPI). The Philips engine and the ViaVoice both use
a srobj.dll file, so if both are installed at the same time one of the
Philips or IBM engines will not appear in the list (and you will also get
some errors). So install one or the other, but not both (you can also disable
the ViaVoice engines by renaming the "Program Files/ViaVoice" folder temporarily,
which is quicker than uninstalling it if you want to try the Philips engine).
1) Installing languages using
might not make
them accessible to JSAPI.
2) You can use the SAPI/DialogTest.exe
program to first uninstall any
existing languages installed
3) Then use SAPI/DialogTest.exe
to install a language and then a dictation
context (using the ISRInstall->GeneralDlg
4) You can create a new speaker
using SAPI/DialogTest.exe or JSAPI.