Turn a PowerPoint deck into a presentation video automatically

Set speed and body motion line by line

The overall settings are usually enough. Adjust a single line when it sounds rushed or needs calmer motion.

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.

This example kept the defaults (standard speed and low/low/low body motion). Here we show where each choice lives on the real screen.

4 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

Check reading speed and body motion

Per-line settings are under Details. You can check the reading speed and the strength of the presenter’s body motion.

  1. Click Details on the line whose settings you want to see.
  2. Under Reading, check speed, fine adjustment, variation, caption and audio. The example keeps Standard speed.
  3. Under Avatar, check body motion (breathing, sway and twist). The example keeps the initial Low, Low, Low.
  1. Action Click Details on the line whose settings you want to see.
  2. Check Under Reading, check speed, fine adjustment, variation, caption and audio. The example keeps Standard speed.
  3. Check Under Avatar, check body motion (breathing, sway and twist). The example keeps the initial Low, Low, Low.
A line with Details opened, showing reading speed and the presenter body-motion settings.

Check If you change speed or body motion, All lines next to the field applies the same value to every line of that voice, including other slides. In the figure the Avatar fields are partly behind the button at the lower right; scroll down to see them all.

STEP02

What you can choose under Reading

The upper half of Details is Reading. The figure shows Details on line 2 of slide 1.

  1. Speed offers Slow, Slightly slow, Standard, Slightly fast, Fast and Very fast. All lines beside it applies the same setting to the other lines.
  2. The Fine tune slider nudges the speed slightly. It is at 0% here.
  3. Variation is the speaking style. It is set to Overall setting here; other choices are Natural (narration A, B, C), Natural (conversational), Emotional and Normal.
  4. Audio shows the current length and voice (5.8 seconds, Kasumi Nagisa here). Update TTS recreates this line’s narration.
  1. Check Speed offers Slow, Slightly slow, Standard, Slightly fast, Fast and Very fast. All lines beside it applies the same setting to the other lines.
  2. Check The Fine tune slider nudges the speed slightly. It is at 0% here.
  3. Check Variation is the speaking style. It is set to Overall setting here; other choices are Natural (narration A, B, C), Natural (conversational), Emotional and Normal.
  4. Check Audio shows the current length and voice (5.8 seconds, Kasumi Nagisa here). Update TTS recreates this line’s narration.
Line 2 with Details opened, showing the Reading and Avatar settings.

Check Changing speed or style requires recreating that line’s narration.

STEP03

What you can choose under Avatar

The lower half of Details is Avatar: the presenter’s body motion while speaking that line.

  1. When Default is shown beside the Avatar heading, the line follows the overall setting.
  2. Breathing, Sway and Twist can be set per line. All three are Low here. Breathing offers None, Low, Low ×1.25, Medium and High; Sway and Twist offer None, Low, Medium and High.
  1. Check When Default is shown beside the Avatar heading, the line follows the overall setting.
  2. Check Breathing, Sway and Twist can be set per line. All three are Low here. Breathing offers None, Low, Low ×1.25, Medium and High; Sway and Twist offer None, Low, Medium and High.
Line 2 with Details opened, showing the Reading and Avatar settings.

Check Below the fields are All lines and Reset to default buttons (below the visible area in the figure).

STEP04

Set the overall speed in Parameter settings

To change the speed of every line at once, use Voice in Parameter settings at the upper right instead of each line.

  1. Check Default speed: Standard here. It is the baseline for lines whose speed you have not changed individually.
  2. Voice and Speaking style for the whole video can be checked here too.
  3. After a change, click Apply these settings to everything.
  1. Check Check Default speed: Standard here. It is the baseline for lines whose speed you have not changed individually.
  2. Check Voice and Speaking style for the whole video can be checked here too.
  3. Check After a change, click Apply these settings to everything.
The Voice and Emphasis sections of Parameter settings.

Check Set the overall values first and fix only the lines that bother you in Details; this keeps settings consistent.

BEFORE YOU FINISH

One final check.

You are done when the line shows the settings you chose. Continue with “Emphasize key parts of a slide”.

Scroll the enlarged image to explore