[mary-dev] Adding allophones features
ingmar.steiner at dfki.de
Wed Oct 27 14:49:14 CEST 2010
basically you just insert features and define the phones in the allophones file. You may want to exercise restraint in adding features at this level that could otherwise be, or perhaps already are, implemented at a different one. (For example, I see that allophones.it.xml contains a feature "stressed"... I don't know much about Italian phonology, but perhaps this is already covered by the "stressed" feature of syllables...) On the other hand, existing AllophoneSets (for German and English, for example) implement a vowel length feature "vlng", which does not apply to consonants. Perhaps you would want to collapse this with your "long" feature for consonants?
The XML file is loaded and parsed by AllophoneSet. You may want to extend the FeatureProcessorManager for Italian and provide byte-valued feature processors for any new phonological features you implement. Please be aware that there are several places throughout the code where certain phonological features (or even allophone names) are hard-coded, or implicitly assumed to contain certain values. These should of course be more flexible, but I'm afraid we currently don't have the time to clean this up... Feel free to update the it-branch accordingly if you run into any problems in this respect!
* Ingmar Steiner
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On 26 Oct 2010, at 19:25, Fabio Tesser wrote:
> I would like to add some phonetic features to the allophones.it.xml for
> Italian to respect to allophones.de.xml.
> Does exist a file (schema?) that contains the phonetic features and
> attributes permitted for each language? Or I simply insert features and
> attributes in the allophones file?
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