All to often, the Internet Marketing Guru's tell you how to post audio on a web site. This in 99% of the cases refers to "Buy this software through me so I get my commission and I hope you know what to say..."
The fact is software is one thing and communicating is all together a different matter.
So 2 steps . . .
1st - The Message & Concept - Storyboard (brainstorm) and create a spoken word script.
2nd - Capture and Publish - Record, edit, mix and encode
Finally another phase all together if you want to be heard and not just another tree "If a tree falls in the forest and no one is there, did it make a sound." . . . Marketing