Release of the Polish voice for Festival

Very remarkable and long waited release happened recently. The Polish multisyn voice for the Festival TTS system was made available. This is the best multisyn voice available nowdays both in terms of speech material (several hours, much more than any arctic database, around 500 Mb of audio) and label quality (it has manually corrected segment labels). Also it uses some unique synthesis method modifications like target f0 prediction for multisyn combined with ToBI/APML-based intonation module. The scheme code also has some important modifications. I really encourage you to try this voice even if you don't understand Polish. I also look forward into the HTS voices

Thanks a lot to Krzystof for his hard work.