How to record text-to-voice in Keynote and render to HVEC video?

Can I record text-to-voice in Keynote, then render to a HVEC video?

I normally record my voice live, in class, from my new MacBook's built-in microphone, during a Keynote session. Works normally.

But after oral and jaw surgery, my voice is not so hot: dysarthria. So I was thinking about some presentations maybe from a transcript but my voice replaced by text-to-voice (Samantha enhanced).

Does anyone know how to set it up?

Posted on Nov 10, 2026 6:22 AM

1 reply

Camelot

Level 9 (62,211 points)

Nov 10, 2026 10:43 AM in response to UnivBloopers

There are quite a few text-to-speech applications. Any one of them will take a block of text and turn it into an audio stream.

https://share.google/FkPDCGTpLnxs1bNbR

So save your transcript for each file, run it through the TTS and save it as an audio file.

Then, in Keynote, you can add the relevant audio clip to each slide via Insert -> Choose File...

Use the Inspector to set the audio clip to start automatically.

Now you can run your presentation and the TTS audio will play for each slide.