Game singing it self

[Snerdy]

Okay my microphone working fine, i playback my voice and everything working so well here and then i go test a game try to sing one song... but when i out of breath singing, i just realize the game just singing it self, i not even say or sing anything just watching the line do it own, it is because of the output?
I mean this is really annoying i don't want a "auto-bot" singing it for me :(.

Can you help me with this problem, so the game won't sing it self like "Not actual me singing it"?

And also there a weird error thingy on cmd when launching the game, don't know what that mean...
libpng warning: iCCP: know incorrect sRGB profile
libpng warning: Interlace handling should be turned on when using png_read_image

If anyone have a problem like me, you in the bad luck just like me...