Hello. I am an audio novice, so please bear with me. I have some sounds and I would like to make these sounds more broadband. How do I do so?
I’ve tried adding a second track with generated pink noise and then use “Mix and Render” with a track containing the original sound. However, this just sounds like my original track with some noise. 
Big surprise. 
Thanks!
What do you mean by “more broadband”? Do you want to add more harmonics to the sound? That’s what a distortion pedal does. You can make a nice distortion with careful use of the Hard Limiter (it should actually be called a variable clipper if you ask me).
Pink noise is certainly a broadband sound, but apparently you didn’t like it.
As an aside, I once wrote a tune called “Fade to Pink” that had a pretty noisy outro. Towards the end I slowly faded in pink noise because my sense of humor is awesome and I liked the way it sounded.