I've heard about electronic "dog" and "cat" translators being available in Japan. The site is cute, but I have to say that JC has no difficulty at all making himself understood (he's a very VOCAL cat). My mother-in-law catsat last week, and told us she was amazed at how JC was able to communicate with her. I'm hearing-impaired, and yesterday he kept "tapping" me on the cheek and running over to our humidifier. The fan on it had burnt out, and I hadn't heard anything. He was so insistent that I put my hand on it and realized that it had overheated. Talk about smart animals! My husband said that JC had sat on the humidifier and yowled before I got up, but he didn't think to check if it was working properly.
I have two cats lying with me right now and I played the "You're mine! I love you!" sound a few times and petted them both. They seemed to understand. Now they're back to napping.
Sam was laying around the base of my monitor when I played one of them. He was intent on it so I played it few more times for him and he hissed and swatted the speaker..
Zoey left my lap and soon after Amelia replaced her. She was standing up. I played the I Love You sound and about 1/2 a second into it she layed right down, rolled over all snuggled up and looked very happy. I'll be using that sound over and over again as my cats seem to be responding to it very positively. What better thing can I tell them than I love you!
Earlier when I played the non-purring sounds it woke my two sleepy cats right up. They were very intently listening looking around to see who was making that noise.
My cats all get loving when I let them in my computer room. I don't know whether it's the hum of the cooling fans are the frequency of the computer processor. In any event, all of my cats turn into love mode around my computer. Maybe I have inadvertently discovered mind control. Then again, I'm not in love mode at work, so it must only work for cats.