Marco Solari wrote: > When You speak about "acoustic models", You mean "English acoustic models", > is it true ? Do some different language acoustic models exist ? Do Italian > language acoustic models exist ? If not, which do You think would be the > effort to put it up, in terms of time and knowledge ? > Yes, to get good accuracy, you need a different acoustic model for each language (and also preferably for different speaking styles, recording device, etc...) CMU will be releasing some more free acoustic models soon but I don't think Italian is one of the languages that we have. The GlobalPhone Project http://www.cs.cmu.edu/~tanja/GlobalPhone/index-e-wel.html collected a lot of data from different languages and built multi-lingual acoustic models but I don't believe these are publicly available.
However, Spanish (particularly American Spanish) acoustic models would probably work reasonably well for Italian, and we are going to release some of them soon. It's a large amount of work to make an acoustic model - for anything more than simple tasks you need to have at least 15 hours of speech from a number of different speakers. To actually record and transcribe this yourself is a lot of work, so it's advisable to use pre-existing databases of speech, such as you can get from the LDC (http://ldc.upenn.edu/) - I think there is a European consortium similar to this but I don't recall the name. Obviously there is a lot of data out there, such as radio and TV, European and national parliaments, but the problem is getting ahold of it and putting it into a form suitable for training. If you only need it to recognize your own speech then this is quite a lot easier and you won't have to record more than 500 sentences or so. We have a project here at CMU which allows you to do this over the Web, but it's not open to the public yet. _______________________________________________ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
