Why can't the talking cat downloaded from my Samsung S6550 talk?

I had the same problem with my mobile phone before. When you were talking to him, there was only a vague voice on the phone, and I didn't know what to say. Then after a long time, he quit. Then I downloaded another one on the Internet, which is quite good. If you talk to him, he can learn from you clearly. There are many versions of talking cats on the Internet. Try more! ~ Good luck, landlord