Voicemail Pro Installation and Maintenance Guide
Page 75
IP Office
15-601063 Issue 15b (31 May 2006)
Installing the Text to Speech Feature
Overview
The Voicemail Pro server is able to use the Text to Speech (TTS) feature to:
Speak text in call flows using the
Speak Text action. The text can include variables passed
from other actions including database actions.
Support E-mail Text to Speech. This requires MAPI based Voicemail E-mail to have been set up
and tested.
Voicemail Pro TTS requires the server PC to have a Microsoft SAPI 5 compatible TTS engine installed
and a valid license entry. Two IP Office licenses exist to enable Voicemail Pro support for TTS operation.
These are:
VM Pro Generic TTS
This license enables the Voicemail Pro server to use either Microsoft's own SAPI5 TTS engines
or third-party SAPI 5 compatible TTS engines. The Microsoft TTS engines (Microsoft Sam, Mike,
Mary and Simplified Chinese) are installed by default as part of the Microsoft Windows
installation. One license is required for each simultaneous instance of TTS usage.
VM Pro ScanSoft TTS
This license enables the Voicemail Pro server to use Avaya supplied TTS engines. These
engines currently provide better voice quality than the Microsoft TTS engines and support a wider
range of languages. They are supplied on a set of 5 CDs separate from the Voicemail Pro
software CD. One license is required for each simultaneous instance of TTS usage.
Tip
For a customer demonstration, Sales staff can use the Microsoft Speech SDK 5.1 which
includes a TTS playback application that enables you to play and compare different TTS
engines without requiring Voicemail Pro. For example you can compare the Avaya-
Scansoft TTS engine with the Microsoft TTS engine. If you install the application on a
sales laptop PC that has the Scansoft TTS installed on it, you can then choose a TTS
engine and produce a WAV file for the specified TTS engine. The Microsoft Speech SDK
is available from http://www.microsoft.com/speech/download/sdk51/.
The following languages are supported by the Avaya TTS engines:
Chinese
Dutch
English (UK)
English (US)
French
German
Italian
Japanese
Korean
Norwegian
Brazilian Portuguese
Russian
Spanish
Latin Spanish.
Multiple Language TTS Support
More than one language can be installed. A Select System Prompt Language action can then
be used to switch TTS to a different language from the selected default.
Email Reading
When installed in parallel with Voicemail Email, Voicemail Pro TTS can be used to provide email
reading to selected mailbox users. For more in formation, see Voicemail Email:Overview and
Setting Up Text To Speech to Read E-mail.
