Turn a PowerPoint deck into a presentation video automatically

Finish in the track editor and save the MP4

A studio video can be refined in the track editor. In this example the automatic output ended with a moment where only the caption remained, so we aligned the clip ends and exported again. Skip this if yours already line up.

The example is a five-slide briefing deck on the benefits of a generative-AI chat platform for small and midsize companies. It is a sample report produced by DeepResearch in Bestllam (https://bestllam.com), our own service, loaded as it is. The presenter is Sophia.

The first figure shows what the studio hands over to the track editor; then we check how the video ends.

6 stepsActual product screenshots

BEFORE YOU START

Before you start

Prepare the PowerPoint file (.pptx) you want to turn into a video and open the MotionVox home screen. The tutorials in this chapter follow the same five-slide deck.

Screenshots show actual sample projects. Instructions describe desktop browser operation; this guide can also be read on a phone.

STEP01

What is handed over to the track editor

Clicking Open the MotionVox editor in the studio opens the same project in the track editor, with the studio content arranged on rows (tracks) by type.

  1. Check the row names on the left: Captions, Caption band, Presenter, Presenter audio, Emphasis, Slides and Background.
  2. The Presenter and Presenter audio rows hold one clip per line. Presenter clips are marked as preview generated.
  3. The Emphasis row holds the emphasis clips, the Slides row the slide images and the Background row the background.
  4. Check the slide and presenter in the preview at the top.
  1. Check Check the row names on the left: Captions, Caption band, Presenter, Presenter audio, Emphasis, Slides and Background.
  2. Check The Presenter and Presenter audio rows hold one clip per line. Presenter clips are marked as preview generated.
  3. Check The Emphasis row holds the emphasis clips, the Slides row the slide images and the Background row the background.
  4. Check Check the slide and presenter in the preview at the top.
The track editor just after opening: rows for captions, caption band, presenter, presenter audio, emphasis, slides and background.

Check Saved (auto-save) at the lower right shows the save state. For editor basics, see “Editor overview” in Quick start.

STEP02

Check how the video ends

When the track editor opens, check the end of the video, because in an automatically created video the last caption can stay slightly longer than the slide and presenter, as it did in this example. With no clip selected, press the End key to move the playhead to the end.

  1. On the top Captions row, look at the end of the last caption. In this example only the last caption extended slightly beyond the clips on the other rows.
  2. Check that the clips on the Caption band, Presenter, Slide and Background rows end before the caption.
  3. Check the final picture in the preview. In this state the slide and presenter have already disappeared and the picture is dark.
  1. Check On the top Captions row, look at the end of the last caption. In this example only the last caption extended slightly beyond the clips on the other rows.
  2. Check Check that the clips on the Caption band, Presenter, Slide and Background rows end before the caption.
  3. Check Check the final picture in the preview. In this state the slide and presenter have already disappeared and the picture is dark.
The track editor with the playhead at the end. Only the last caption extends beyond the other clips.

Check In this example, during roughly the last 0.6 seconds the slide and presenter disappeared and only the caption remained. If the ends are already aligned you can skip the next step. Playhead at the lower left shows the current time (200.12 seconds here).

STEP03

Align the clip ends with the end of the video

Keeping the playhead at the end, select each short clip and extend its end to the playhead: click the clip, then press the E key.

  1. On the Caption band, Presenter, Slide and Background rows, click the last clip and press E. All four ends align with the red vertical line (the playhead).
  2. The last Presenter clip now says it needs preview generation, because its length changed.
  3. Click Generate ungenerated in the toolbar to recreate the presenter video.
  1. Action On the Caption band, Presenter, Slide and Background rows, click the last clip and press E. All four ends align with the red vertical line (the playhead).
  2. Check The last Presenter clip now says it needs preview generation, because its length changed.
  3. Action Click Generate ungenerated in the toolbar to recreate the presenter video.
After extending the caption band, presenter, slide and background to the playhead.

Check In this example regeneration took about 45 seconds and the clip returned to Preview generated. We did not extend the Presenter audio row, because the narration length does not change. Extend end to playhead in the right-click menu does the same.

STEP04

Export the video again

After adjusting the clips, export the video again. Click Output at the top, then Export video in the menu to open the confirmation.

  1. Check the export settings: 1280×720, 30 fps, MP4 (H.264 / AAC) in this example.
  2. Click Export.
  1. Check Check the export settings: 1280×720, 30 fps, MP4 (H.264 / AAC) in this example.
  2. Action Click Export.
The confirmation for Export video in the track editor.

Check The dialog notes that an existing exported video in the same language will be replaced. Export took about one and a half minutes here. A small player opens when it finishes; click Close. Skip this step if you did not adjust clips in the previous step.

STEP05

Check the video and download the MP4

Click Output at the top, then Exported videos (Play and download). The figure shows the 3 minute 20 second video made in these steps, with the slide at the upper left and Sophia on the right.

  1. Check the first picture and the length (0:00 / 3:20). Press Play to watch it here (sound will play).
  2. Check the export time and size to confirm this is the video you just exported.
  3. Click Download to save the MP4 file to your computer.
  1. Check Check the first picture and the length (0:00 / 3:20). Press Play to watch it here (sound will play).
  2. Check Check the export time and size to confirm this is the video you just exported.
  3. Action Click Download to save the MP4 file to your computer.
The exported-video dialog. This example is 3 minutes 20 seconds.

Check The editable project and the downloaded MP4 are separate. Reopen the project for later changes and distribute the MP4 you have checked. Before sharing it, play it through to check that slide text is readable, numbers and names are correct and the ending looks natural.

STEP06

After re-exporting, check in the studio’s Finish

When you open the studio after re-exporting in the editor, the Finish cards show the new export time.

  1. Check the time on the Watch the finished video card: “exported 11/14 04:59”, the time of our re-export in the editor.
  2. The Export in the editor card says an exported video exists and to export again in the editor after making changes.
  3. MotionVox editor at the lower left takes you to the track editor at any time.
  1. Check Check the time on the Watch the finished video card: “exported 11/14 04:59”, the time of our re-export in the editor.
  2. Check The Export in the editor card says an exported video exists and to export again in the editor after making changes.
  3. Check MotionVox editor at the lower left takes you to the track editor at any time.
Step 5, Finish, after the video was created: readiness at the top and action cards below.

Check The Deck box at the lower left notes that the project has been sent to MotionVox. Editor changes and the studio script are kept separately, so decide where to finish before revising the script.

BEFORE YOU FINISH

One final check.

Once the MP4 is saved, you are done. Before publishing, watch the video through to check that nothing hides the slide text and that numbers and names match your slides.

Scroll the enlarged image to explore