How to generate random 24-bits samples in VHDL

Keywords: random vhdl generator

Question: 

I've made an I2S transmitter which send data to an I2S-breakout board. Now I have two different (2 x 2 x 24-bits) samples to send out. But I would like to have more different samples. Maybe this is possible with an "sample-generator"? I don't know how to do that, can anyone help me?

I have looked around the forum, but have not found anything that I can use.

Answers: