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IVONA Text-To-Speech TELECOM Print E-mail


IVONA Telecom Text-To-Speech is a solution designed for developing telecom systems like: Contact and Call Centres, Interactive Voice Response Services, Voice Self Services, SMS to Voice conversion and many other. The IVONA TTS analyses and interprets the text using the algorithms of artificial intelligence and reads it out loud in a natural, human-like way. The synthesized text is sent directly to a telephone line or saved to a file. IVONA Telecom comes with a commandline interface, compliance with the Microsoft Speech API and MRCP standard making the process of an integration easy.

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Main benefits:

  • quality – based on IVONA engine recognized as the best Text-To-Speech by the world's famous experts – awarded at the Blizzard Challenge 2006 and 2007
  • technology – unique self-developed algorithms resulting in outstanding performance
  • language independent 
  • exception dictionary based on regexp
  • high throughput: 100+ parallel ports per single core proccesor
  • low integration costs, scalability – SAPI / MRCP Media Serv
Languages / voices supported:
  • US-English female Jennifer
  • US-English male John
  • Romanian female Carmen
  • Polish male Jacek
  • Polish female Ewa
more comming soon...

Technical specification

Windows Version
  • System Versions supported: NT4, 2000SP3, XP, Vista, 2003 Server and newer
  • APIs: proprietary API (SDK – programmers, commandline with streaming support), Microsoft SAPI 4, Microsoft SAPI 5.1, 5.2, 5.3.
  • Native Java Client supporting Java SDK (Java Native Interface)
  • MRCP 1.0 (Media Resource Control Protocol)
  • Markup languages: own accent / pronounciation forcing marks
  • Development languages: C, C++, Java, all scripting languages via commandline
  •  Input of text: unlimited vocabulary (domain), unlimited text size, raw text
  • Normalisation of text: dates, time, currencies, URLs, emails, abbreviations and exceptions, plugins which provide more specific normalisation tasks
  • Pre-processing modules: e-mail,
  •  Audio Output: stream: multimedia device, file, memory buffer, DirectX, Stream (SAPI 5). Sampling rate: 8kHz (telephony), 11, 16, 22 kHz, any other frequencies available on demand
  • TTS Server modes: local or remote (IP), as a desktop process or as a service
Unix/Linux Version – as Windows Version except:
  • System Versions supported: all
  • API: proprietary API, Java SDK (Java Native Interface)
Programmers Interface
  • Windows version - commandline, GUI, Microsoft Speech API, API
  • Unix/Linux version -  commandline, API, JAVA, unix domain/inet socket (when acting as a server/daemon)
Users Interface

The IVONA Telecom package includes:
  • the IVONA speech synthesizer for telecommunications
  • SAPI Tester - access to the synthesis through a GUI (for Windows)
  • support for the Microsoft Speech API (for Windows)
  • access to the synthesis through API (for Unix/Linux)
  • ivonacmd: access to the synthesis through a commandline(for Windows)
  • ivonacl: access to the synthesis through a commandline(for Unix/Linux)
  • IVONA TTS server (daemon)
  • jivonatts:  for JAVA (optional)
Demo Version Description  - as above with built-in music background and license info in generated stream / file.
  • Free hard disk space required: ca. 200 - 400 MB per one 8kHz voice
  • Default frequency: 8 kHz

    If you have any question about IVONA Telecom please contact  IVO Software Sales Department using inquiry form or at (this email address is being protected from spam bots,  you need Javascript enabled to view it).

    The IVONA TTS is also available in:
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