Voiceover Formats¶

---
marp: true
---

# My Slide

Content here.

<!-- This text will be converted to speech
     and played while this slide is shown. -->

---

# Next Slide

<!-- Voiceover for the second slide. -->

<!-- Welcome to this presentation.
     [PAUSE:1000]
     Let's explore the first topic.
     [PAUSE:500]
     Here we go! -->

{
  "version": "1.0",
  "metadata": {
    "title": "My Presentation",
    "defaultLanguage": "en-US",
    "defaultVoice": {
      "provider": "elevenlabs",
      "voiceId": "pNInz6obpgDQGcFmaJgB",
      "voiceName": "Adam"
    }
  },
  "slides": [
    {
      "index": 0,
      "transcripts": {
        "en-US": {
          "segments": [
            { "text": "Welcome to this presentation.", "pause": 1000 },
            { "text": "Let's explore the first topic." }
          ]
        },
        "es-ES": {
          "segments": [
            { "text": "Bienvenido a esta presentación.", "pause": 1000 },
            { "text": "Exploremos el primer tema." }
          ]
        }
      }
    }
  ]
}

vac \
  --input slides.md \
  --transcript transcript.json \
  --lang es-ES \
  --output video_spanish.mp4