Small problems

[lolwutman]

I'm having small problems. I tried a lot of things and it seems that it works.

The problem are these;

1. Either, I need a mic, or make a fake mic. Not sure, but I do want to hear my own audio as well.
2. Whenever I press the "play audio key", all it does is just show up and quickly fade away. (Tested on CSS)

So can anyone answer this? I want to use HLDJ and I can't because of an audio or a key that doesn't work.