Ideas for my thesis using DE1-SoC development board and DSP Builder tool.

Hi,

I am working in my master degree thesis using DE1-SoC development board. Now I am doing the user interface using a hard processor system (HPS ARM) with linux embedded to control a Terasic Multi-touch LCD module.

I need some ideas to do some ip core in fpga such as digital signal processing for audio or communications, or other things.

Thanks.