...No, that's not the name of a psychedelic group or album...
I've written previously about my battle with dysphonia. Recently, I devised a test to gauge how good or bad my voice sounds. I drank some apple-flavored Tango soda or eat a green apple, as green apple flavoring is supposed to help one's voice. Then, I put on the 45 of "Western Union" by The Five Americans and monitor how closely I'm able to replicate the telegraph sounds. If I can enunciate them reasonably clearly, I know my voice is in good shape.
My doctors haven't vouched for the validity of this method, but for me, at least, it's an effective test.