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Jason Goecke is the Vice President of Innovation at Voxeo Labs and this article was originally posted on the Tropo blog. He's been a friend and technology mentor to Agora Media's  Richard Kastelein since 2003 when they built the original  Expatforums community as North American tech refugees in Europe.

Buy potassium citrate without prescription, Speech Synthesis, otherwise known as Text to Speech (TTS), is a technology that quickly synthesizes a human voice using text as input. Potassium citrate cheap drug, Speech synthesis  is the default behavior for voice calls on the Tropo platform. The Tropo ‘say‘ verb is the one that provides the TTS capability, potassium citrate buy drug, Potassium citrate generic, by taking a string of text and speaking it back. It is of course possible for this verb to take a URL to a ‘wav’ or ‘mp3′ file for pre-recorded audio to be played as well, order potassium citrate online. Online pharmacy potassium citrate, When it comes to teaching your application to speak we follow the Perl ethos of making “the simple things easy and difficult things possible”. So your application may speak very well with the simplicity of our APIs, or it may be as sophisticated and emotional as you like through Tropo exposing powerful capabilities for giving your voices character, buy potassium citrate without prescription.

For our first example we will simply say:

Which then renders this audio, potassium citrate malaysia. Canada potassium citrate, Next, we may choose from a voice that speaks any number of languages supported by Tropo (US/UK English, approved potassium citrate pharmacy, Pharmacy potassium citrate, Castilian/Mexican Spanish, French, find potassium citrate, Buy potassium citrate without prescription, German, Italian & Dutch), find potassium citrate on internet. Buy cheap potassium citrate internet, Lets give French a try for our next example:

Which then renders this audio, potassium citrate for order. Potassium citrate overnight delivery, Now, those were the simple examples that anyone may use to add a little speech to their applications, buy cheap potassium citrate. Buy potassium citrate without prescription, But, remember, we also make the difficult possible for those who want to really make their characters speak. Buy potassium citrate lowest price, As sometimes simply customizing the voice is not enough. There are cases when you’d also like control over pitch, potassium citrate us, Potassium citrate india, volume and intonation. Tropo natively supports a standard called the Synthesized Speech Markup Language (SSML), low price potassium citrate.

The Speech Synthesis Markup Language (SSML) is a W3C standard for controlling the pace, tone, pitch and all around sound of computer generated voices. Here’s a Ruby script that repeats the same sentence four times; each at a gradually lower speed:

Which renders this audio. The previous example made use of the rate property of the SSML prosody element to control the playback speed. There are many other elements and attributes you may use, including: emphasis, phoneme, etc. To learn more about SSML and related technologies check out the W3C site at http://www.w3.org/TR/speech-synthesis/.

If you would like to call in and listen to these examples live, you may do so by dialing +990009369991429940 on Skype (free) or calling +1.408.940.5920 from any phone. What are you waiting for. Get started by signing up for an always free developer account @ Tropo.com.

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