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LexiconKit

Tailor Pronunciations for Maximum Clarity

Manage lexicons for optimal recognition and synthesis with LexiconKit 5

No matter how you slice it, a tomato is just a tomato. However, your end users—customers and clients—may be partial to their kind of tomato. Your applications need to accommodate and adjust to their manner of speaking when recognising and synthesizing.

A lexicon is a collection of word pronunciations that a speech recognition engine (i.e., recognizer) uses to improve recognition accuracy and a speech synthesis engine (i.e., synthesizer) uses to enhance the quality of its pronunciation.

Lexicons play an important role in the accuracy of speech recognition. A speech recognition engine (i.e., recognizer) uses lexicons in the process of recognising speech. Lexicons consist of the words that a recognizer understands and returns as recognised speech. Since it's impractical for a recognizer to maintain every possible word and context in its spoken language, you enhance the accuracy of speech recognition by extending its lexicon.

Lexicons play an important role in the quality of text-to-speech playback. A text-to-speech engine (i.e., synthesizer) uses lexicons to obtain pronunciation information associated with words to generate the appropriate speech sounds for the word. For example, with a lexicon you may ensure "record" is pronounced correctly when used as a noun and when used as a verb.

What is Lexicon Management?

Lexicon management enables you to:

  • tailor pronunciations to specific end user preferences.
  • extend recognizer and synthezizer lexicons, and
  • create, delete, edit, import, and export lexicons as part of your deployed applications.

Application benefits include:

  • improved speech recognition accuracy and
  • enhanced speech synthesis clarity.

What is LexiconKit?

Chant LexiconKit handles the complexities of managing lexicons and persisting them in files for deployment and installation.

The LexiconKit class library includes a lexicon management class that provides you a simple way to create, edit, export, and import lexicon word pronunciations. Your application can edit lexicons as part of its runtime operation to enable real-time customisation and tailoring of your speech recognition and speech synthesis environment.

It simplifies the process of managing word pronunciations for Cepstral Swift API, Microsoft SAPI 5, Microsoft Speech Platform, and Nuance Vocalizer and VoCon API lexicon formats to use with your favorite speech recognizers and synthesizers.

LexiconKit includes C++, C++Builder, Delphi, Java, .NET Framework, and Silverlight class library formats to support all your programming languages and sample projects for popular IDEs—such as the latest Visual Studio from Microsoft and RAD Studio from Embarcadero.

The class libraries can be integrated with 32-bit and 64-bit applications.

 

Features

The goal of lexicon management is to adjust to the end user manner of speaking for enhanced speech recognition accuracy and speech synthesis quality. With LexiconKit you can:

  • Edit locally installed lexicons;
  • Create and delete lexicon word pronunciations on demand;
  • Export and import lexicon word pronunciations for ensuring maximum recognition accuracy and speech synthesis quality; and
  • Add and remove dictation shortcuts.

Chant LexiconKit handles the complexities of managing and persisting word pronunciations. This allows your application to enhance the quality of speech recognition and speech synthesis and offer administrative features for maintaining word pronunciations.

Recognizers and synthesizers have unique formats for word pronunciations, lexicon formats, and approaches for runtime inclusion. LexiconKit supports the following recognizer and synthesizers and their lexicons formats.

 

Recognizer or Synthesizer Speech API
Cepstral (all languages) Swift API
Microsoft SAPI 5 (all languages) SAPI 5
Microsoft Speech Platform (all languages) MSP
Nuance Vocalizer Auotmotive (all languages) Vocalizer Auotmotive
Nuance Vocalizer Expressive (all languages) Vocalizer Expressive
Nuance Vocalizer Network (all languages) Vocalizer Network
Nuance VoCon 3200 V2 (all languages) VoCon 3200 V2
Nuance VoCon 3200 V3 (all languages) VoCon 3200 V3
Nuance VoCon 3200 V4 (all languages) VoCon 3200 V4

Within Chant Developer Workbench, you can:

  • Create and edit W3C lexicons (.pls);
  • Create and edit Cepstral lexicon file (.txt);
  • Create and edit Nuance Vocalizer and VoCon user dictionary text file (.dct);
  • Create, edit, export, and delete SAPI 5 user and application lexicons;
  • Generate word pronunciation phonemes; and
  • Edit word pronunciation phonemes.

 

PLS Lexicon Editing: Edit word pronunciations faster using XML with built-in intelliprompt that suggest valid syntax and with built-in phoneme generation and editing tool windows.

Cepstral Pronunciation Editing: Create and edit Cepstral default pronunciations faster by using the auto generation feature. Simply type the word, space, and 0 to generate the default pronunciation for editing.

Vocalizer and VoCon Pronunciation Editing: Create and edit Vocalizer and VoCon pronunciations faster by using the auto generation feature. Simply type the word, space, and two forward slashes to generate the default pronunciation for editing.

SAPI5 Pronunciation Editing: Create, edit, export, and delete SAPI 5 user and application lexicons. Add and delete pronunciations faster by using the Lexicon Pronunciation window.

SAPI5 Shortcut Editing: Edit and export SAPI 5 user lexicons. Add and delete shortcuts faster by using the Lexicon Shortcut window.

 

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Call MicroWay on 1300 553 313 or email for more information.

 


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