This document discusses voice enabled applications and provides examples using Adhearsion Sandbox and Tropo.com. It explains how to sign up for and use Adhearsion Sandbox to build applications that can record and playback audio. It also shows how to integrate Adhearsion with Rails applications. Finally, it introduces Tropo.com and provides links to tutorials for building applications using the Tropo API.

1. Voice Enabled Applications
Touring the Adhearsion Sandbox
and Tropo.com

2. What are Voice Enabled Applications?
Image from: Emerging Voice Technology, Inc

3. Adhearsion Sandbox

4. Adhearsion Sandbox - Live coding
Signup For An Account
http://adhearsion.com/signup
Get your PIN
http://adhearsion.com/account
Install Adhearsion & Enable Sandbox Component
sudo gem install adhearsion
ahn create rum_adhearsion
cd run_adhearsion
ahn enable component sandbox
vi components/sandbox/sandbox.yml - add credentials
vi dialplan.rb - change block name to sandbox
ahn start .
dial 1(213)325-2621 and enter your pin - play simon says

5. Adhearsion Sandbox Samples
Record sound:
sandbox {
record quot;/var/www/recordings/test.wavquot;
play quot;/var/www/recordings/testquot;
}
Playback at: http://recordings.sandbox.adhearsion.com/test.
wav
Text to Speech - Version 2:
sandbox {
filename = COMPONENTS.surveys[:sound_dir] + new_guid +
quot;.ulawquot;
system(quot;echo #{text} | text2wave -o #{filename} -otype
ulawquot;)
}

6. Adhearsion Sandbox Samples
Rails Integration
vi config/startup.rb - comment out config.enable_rails line
rails gui
cd gui
ruby script/generate scaffold user name:string state:string
rake db:migrate
ruby script/server &
cd ..
ahn start .

7. Tropo.com

8. Tropo.com
Examples
http://tropo.com
Login
Goto Account -> Your Applications
Show Ruby Tutorial - http://docs.tropo.com/tutorial:ruby
Show Yahoo Weather
Show script in Textmate
Test calling number
Show Basic Attendant
Show script in Textmate
Test calling number

9. Links
Adhearsion
http://adhearsion.com
Tropo
http://tropo.com