I used a text to speech app to write down the words. For example I wrote the word "kör". Then I saved the file as "kör.wav". The format is 384 kb/s, 1 channel, sample rate 24,0 kHz, bit depth 16 bit. In Utau I created a note and wrote "kör" for the lyric, but it doesn't play sound. However some other hungarian words like "és", "egy" plays fine. So I don't understand what's the problem. Can somebody help me? Thanks in advance.