Is there a way to transmit all sound over wifi from my tablet to my pc? I want to transmit my sound (from youtube, music files on the tablet, etc) from my tablet to my computer.

The closest I can get is controlling my library of music on my computer, but I really want to be able to play a youtube video from the youtube app on my tablet and have it play through my computer.

I don't mind buying apps if that is what I need. Any help will be appreciated.
In general it is at the moment impossible to stream all audio from your android to another receiver.

There's no app which can help you because android itself has no APIs for grabbing audio.

But sure you may use a specific player, e.g. one for YouTube and one for music and so on.

I really know what I'm talking about because I'm developing an app for general streaming audio since several months (it's really hard work with rooting, kernel-module etc.).