Whenever i am gaming online on my PS3 i have noticed that my Note 3 Randomly boots up the S-Voice app and i am not sure why i thought it only did that on the key word of Galaxy are there other words that will make it boot up?
I had that problem once also while I was playing music from a speaker that I hooked up to my Note 3. I don't know what kept setting off S-Voice, but I just ended up turning off S-Voice. I never used it anyway. I always use Google Now.
I don't have a solution but I finally had to turn it off because it would turn on at least once every 15 minutes without being prompted. It makes me sad and I wish I knew of a fix...