Need help!

[Geauxtigers1421]

I've been practicing with my calls a lot lately. However, I ran into a problem and I'm gonna have to go back to the basics to fix it. I found myself starting to grunt into the call rather than just using my diaphragm. I didn't do this before unless I did and haven't noticed but I need to fix it before its a habit. I've been trying tons of things and can't find the fix. Every time I go to use a root word into the call, I find myself grunting again. Not sure if its because I have a deep voice or not, so I just stopped trying to use a word and trying to just get air out of my diaphragm without it but can't seem to figure it out. It's either way to raspy due to the grunting or not nearly enough, nothing in the middle which is what I'm looking for. Are there any tips you guys have that could get me on the right track? Or any videos of real ducks on the web somewhere I could watch to know when I get the right sound? I looked on YouTube and couldn't find anything helpful. Thanks for any help in advance.