Hi! Placing audio on a website is super simple with a tool called Audio Acrobat. I'll give you two links, one is my affiliate link (should you be so pleased to click it) and one is the straight link just in case it is against the rules to post affiliate links
AudioAcrobat.com: Audio for everyone!
AudioAcrobat.com: Audio for everyone!
Just creating audio and posting it on your site isn't podcasting and you mentioned the one thing that makes an audio a podcast: an RSS feed.
A podcast is simply providing some kind of media via an RSS feed