Text to Speech for PowerPoint

1. 01

   Upload your PPTX: AI voice generator

   The tool reads speaker notes from each slide automatically, or uses the main slide text if no notes are found.

2. 02

   Review and generate

   Edit or trim slide sections, pick a voice and format, then generate your selected narration queue.

3. 03

   Download audio clips and manifest

   Download a ZIP with one labelled clip per slide plus a CSV placement manifest, or grab the single joined audio file.

4. 04

   Repeat and export as video

   Repeat for each slide. Head to File → Export → Create a Video to build your training MP4 with voiceover included.

Want to hear them? Browse all 54 voices →

• 01

  Insert audio on each individual slide

  Create a separate WAV file for each slide instead of one long track for the whole presentation. In PowerPoint, go to Insert > Audio > Audio on My PC. Place it on the slide, select Start: Automatically, and tick Hide During Show. If you need to update one slide later, you only have to re-record that single file.

• 02

  Match slide timings to your narration

  Open the Animations pane and set the slide to advance "After", using the duration of your WAV file plus an extra 0.3 seconds for breathing room. PowerPoint displays the audio length on the timeline, so round up slightly. For animated bullet points, set each to appear on click and use audio cue points to trigger them at the right moment.

• 03

  Export directly to MP4 with audio included

  Select File > Export > Create a Video, then choose "Use Recorded Timings and Narrations" to embed slide audio straight into the video file. Select 1080p for clear HD playback, as 4K increases file sizes substantially with little visible benefit for slides. Your finished MP4 will play anywhere, including LinkedIn, YouTube, Vimeo, and internal learning platforms, with no need for PowerPoint.

• 04

  Manage file sizes across larger presentations

  A 24 kHz WAV file takes up around 3 MB per minute. If you plan to email or share the slide deck, select MP3 format in the generator. This keeps file sizes low without any noticeable drop in speech clarity. Alternatively, share the finished MP4 video rather than the raw presentation file.

• 05

  Set up self-running presentations for events

  Go to Slide Show > Set Up Slide Show > Browsed at a kiosk (full screen). Configure each slide to advance automatically after the audio finishes, leaving a short pause in between. The presentation will loop continuously on your stand without anyone having to manage it. Clear voices like Bella or Sarah work best without background music, keeping the narration audible above hall noise.

• 06

  Control your pacing with punctuation: AI voice generator

  The model uses punctuation to set the pace. Commas add a brief pause, full stops leave a longer break, and ellipses add a slightly longer pause still. If you want punchier bullet points, split ideas with full stops rather than commas. For acronyms, add spaces between letters ("A P I" is read letter by letter, whereas "API" might be read as a single word). Test, listen, and regenerate. Because each attempt is completely free, you can fine-tune your script without worrying about costs.

Comparison details reflect the documented behaviour of PowerPoint Read Aloud and Speaker Coach when this page was last reviewed. As Microsoft updates features regularly, please check your installed version to confirm.