How would you record a presentation along with audio in Teams?

Hi MaryFischer-Tracy,

Regarding "But I don't want it to be live", may I confirm whether you mean that you only want to record the presentation along with audio without start a Team meeting with other team members? 

If so, the answer is yes, to doing so, please kindly do as following steps:

(1) In Microsoft Teams, go to Calendar tab and click the button "Meet now" to start a meeting without invite any participant.

(2) Click “More actions” from the meeting control bar and click “Start recording", see below picture:

(3) Make sure to unmute yourself and you can start your presentation, you can upload your presentation files by clicking the Share button “” from the meeting control bar.  

(4) When finishing the presentation, click “More actions” and click "Stop recording".

It might take some time to process the recording, when it done, you can find the recording directly from the Chat tab. And to post it to the group on teams, click the “More options” button next to the recording and click the option “Get link”, then you can copy and paste the link to any team you want to share, or you can click Share to make this recording available to everyone in your organization: 

For your reference: 

• Record a meeting in Teams
• Play and share a meeting recording in Teams

Please feel free to correct me if I misunderstood your concerns or let me know if there is anything unclear, I will glad to help you further.

Best regards,

Jennifer