Here is my Polishing project. I recorded a screen capture of my voice recording of ~15 seconds of audio. I then removed noise, normalized the file volume and proceeded to polish the results.
I made at least 3 dozen small changes. I can sure hear the differences, but I am used to studying and Polishing my own voice. Can you hear the difference from Before to After the Polishing?
Here is a Link to the Project Video on Google Drive: Dr. Ron's PYV1 Project Audio
Here is a YouTube posting of the same video (which you can embed using the "brackets" above on the far right). The image below shows the signal before Polishing... the image above shows it after Polishing.