[pls] Loquendo Implementation Report for PLS 1.0 Specification

Loquendo Speech Technologies

Executive Summary
 
Loquendo firmly believes speech markets can greatly benefit from 
speech standards and is continually supporting their development 
and deployment. As an active member of the W3C Voice Browser group, 
Loquendo welcomes the Pronunciation Lexicon Specification 1.0 
Candidate Recommendation, which has been an essential step 
in simplifying the use of speech technologies for both ASR and TTS. 
The presence of a standard format for pronunciation lexicons 
can promote the sharing of pronunciation resources and, 
more importantly, it completes the Speech Interface Framework.
 
Loquendo is very pleased to contribute by submitting a complete 
PLS 1.0 Implementation Report. Loquendo will continue to give 
its full and enthusiastic support to the work of the W3C Voice Browser 
and Multimodal Interaction Working Groups, as well as to the 
VoiceXML Forum, as part of its continuing commitment to, and 
active participation in, the evolution of this and other specifications.


Technical Details

All the tests were correctly passed, a few comments to make are:
-	TA #24 : The test document is loaded and correctly used, but 
      there is no way to test the values of meta element, because 
      they are ignored by the current implementation of the PLS
processor;
-	TA #50 : The test document is loaded and correctly used, but 
      there is no way to test the use of the 'xml:base' inside the meta 
      content, because it is ignored by the current implementation of 
      the PLS processor;
-	TA #63 : In the third 'conf:output' result element of the .txml
document,
      the commented and uncommented 'conf:item' elements should be
swapped around;
-	TA #89 : We would prefer to remove this Test Assertion, because 
      there is no reason to limit a PLS processor to the number of 
      languages to be supported. The error should be raised by 
      the integrating module, so that it is not pertinent to the 
      PLS Implementation Report

Note that the Loquendo processor is not documented as having 
a method of selecting pronunciations for TTS, so it always selects 
the first in document order, as specified in Section  4.9.2 of PLS 1.0
Candidate Recommendation [1].

[1] http://www.w3.org/TR/2007/CR-pronunciation-lexicon-20071212/#S4.9.2

Paolo Baggia,
Davide Bonardo
Loquendo


Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia S.p.A.

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