Book Image

FreeSWITCH Cookbook

By : Raymond Chandler, Darren Schreiber, Anthony Minessale II, Michael Collins
Book Image

FreeSWITCH Cookbook

By: Raymond Chandler, Darren Schreiber, Anthony Minessale II, Michael Collins

Overview of this book

FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice, chat, and video applications. It can scale from a soft-phone to a PBX and even up to an enterprise-class softswitch.In the FreeSWITCH Cookbook, members of the FreeSWITCH development team share some of their hard-earned knowledge with you in the book's recipes. Use this knowledge to improve and expand your FreeSWITCH installations.The FreeSWITCH Cookbook is an essential addition to any VoIP administrator's library.The book starts with recipes on how to handle call routing and then discusses connecting your FreeSWITCH server to the outside world.It then teaches you more advanced topics like CDR handling, practical examples of controlling FreeSWITCH with the event socket, and configuring many features commonly associated with a PBX installation.
Table of Contents (12 chapters)
FreeSWITCH Cookbook
About the Authors
About the Reviewers

Advanced text-to-speech with mod_tts_commandline

The Text-to-speech (TTS) applications vary in their quality, complexity, and price. One thing most high-end TTS engines have in common, though, is a command line interface for generating audio from text. FreeSWITCH's mod_tts_commandline module is designed to take advantage of this. While it is completely possible to create a separate module for each engine—and indeed this is the case for mod_flite—it is convenient to utilize a more generic interface that is somewhat agnostic to the exact TTS engine being used.

In this recipe we will install mod_tts_commandline and then download a free TTS engine that has a command line interface to use with it. We will also show command line examples of using some commercial TTS engines.

Getting ready

This recipe has a few prerequisites. The most important one is to get a copy of the freeswitch-contrib git repository. The "contrib repo" as community members call it, contains a number of items freely given back...