How to Add Voiceovers to Videos in Workflows

To add voiceovers, just use the Add or Replace Audio or the Generate Voiceover tools. Otherwise, use workflows to add audio tracks over videos, replace existing audio, or generate text-to-speech audio and chain them with other Bannerbear operations.

Inputs

Create a Workflow and use the + Add Input button to declare your inputs. These are the parameters that you'll supply to the API when you run your workflow.

Each Inputs has:

• name - used as references in your steps and API requests
• type - the type of input you're supplying
  • text      
  • url      
  • number      
  • boolean (true/false)
• required  - determines whether a run must supply this input

Add or Replace Audio

🐻 Bear Tip: If you already have an existing audio file, go with this option.

Add a Tool step and select Add or replace audio from the list. Use the + ref drop-menu to add your inputs to their corresponding fields.

Generate TTS Voiceover

🐻 Bear Tip:  If you'd like to generate a text-to-speech audio, go with this option

Add a Tool step and select Generate Voiceover from the list. Use the + ref drop-menu to add the appropriate inputs. Pick the voice you prefer from the Voice field.

API Workflow Run

Send a POST request to the /v5/workflow_runs endpoint, along with your workflow UID and your inputs.

var data = {
  "workflow": "VymBYa7gMjW6JQ2njM",
  "inputs": {
    "audio": "audio_file.mp3",
    "video": "https://www.bannerbear.com/video/webcam_example.mov"
  }
}
fetch('https://api.bannerbear.com/v5/workflow_runs', {
  method: 'POST',
  body: JSON.stringify(data),
  headers: {
    'Content-Type' : 'application/json',
    'Authorization' : `Bearer ${API_KEY}`
  }
})

🐻 Bear Tip: Workflows can be created via the API as well. See Create a Workflow for more.