Audio PA Sound System Filter advice?

I am trying to replicate a PA System with the Unity Audio Mixer system. I cannot seem to find a tutorial or any advice that would help me recreate "scratchy amplified" sound from a cheap carnival announcer.

Any advice or links to choose the proper filter effects to use with the Unity Audio Mixer?

Thanks for any advice.

Here is the game I am building and this video should give an idea of the Carnival and Ambiance.

Kevin

 

Anybody? Im using Audacity and have recorded my own audio voices and need to make it sound like a cheap PA system.
Thanks.

 

Well I ended up doing this in Audacity. I thought I would share it here just in case it will help others.

I found if you add a small echo Distortion to the clip and then just amplify the hell out of it (and allow clipping)..... it will sound just like a junk old PA system. You can then play it a little lower in Unity and it sounds pretty good.

You can hear the carnival hecklers in the attached vid Fast forward to about 4:00 to hear the Coin Pusher Heckler.