Captchas are more annyoing than ads.

Yes, and Google captchas are the worsts of all of them.

I found Buster a while ago and works most of the times, it use the accesibility audio challenger to try to solve it using speech recognition. When it don't work I found more easy to try the audio challenger, you just need to write the part that you understand and not all you hear, less picky than the images, still a pain in the ass