You can add recorded speech to your simulation: for what the character says and for the learner's reply choices. Upload MP3 files in the Voice-over panel (microphone icon) in the editor's left bar, or generate a voice-over with AI.
File limits
Format: MP3 only.
File size: up to 10 MB per file.
Total voice-over per account: 5 minutes on Free, unlimited on paid plans.
Add voice-over to one scene
Click the Voice-over icon (microphone) in the left bar. The Scenes tab lists every scene with the character's text and the reply choices under it.
Click the cloud icon next to the character's text or next to a choice, and choose your MP3 file.
Click the play button to listen. Click the bin icon to delete the file.
If a scene has both, the character's voice-over plays when the scene starts, and the choice's voice-over plays after the learner picks that choice.
The Voice-over panel on the Scenes tab. Each scene shows the character’s text with its ID (S01, S07, S09…) and the reply choices below it. For scene #1, the cloud icon and the AI icon next to the character’s text are highlighted (Character), and the cloud icon next to the choice “Start” is highlighted (Choice).
Upload many files at once
Click Script in the Voice-over panel to see the whole simulation with its scene and choice numbers.
Name each MP3 file after the scene or choice it belongs to, for example
S01.mp3.Open the Upload tab and drag your files there, or click to choose them.
The files are added to the matching scenes and choices and appear on the Scenes tab.
The Upload tab of the Voice-over panel. The highlighted text explains that files must be named correctly and that all file names are listed under the Script button. The highlighted upload area says “Click to upload or drag multiple files here. We support MP3 files only”.
Generate a voice-over with AI
BranchTrack can generate the character's voice-over from the scene text:
On the AI Voice tab, choose a voice in Voice. All voices speak English; text in other languages is ignored.
Tick Use scene emotion to generate more accurate voice if you want the voice to follow each scene's emotion.
On the Scenes tab, click the AI icon (sparkles) next to a scene to generate its voice-over.
If you change the scene text or the voice later, generate it again.
The AI Voice tab of the Voice-over panel. It explains how AI voice works. Highlighted: the Voice list (here “Jane. Female - Young Adult”) and the option Use scene emotion to generate more accurate voice. A note says the feature is currently in testing.
AI Voice is switched on per account and uses AI credits. To turn it on, contact BranchTrack support.
What learners see
When a simulation has voice-over, learners first see "This simulation contains voiceover audio. Please choose how do you want to proceed…" with two choices: Proceed with audio or Mute voiceover.
With audio on, the voice-over plays automatically.
With voice-over muted, learners can still play it by clicking the sound icon on the speech bubble.
What learners see at the start of a simulation with voice-over: the message “This simulation contains voiceover audio. Please choose how do you want to proceed…” with a highlighted sound icon, and the highlighted choices 1 Proceed with audio and 2 Mute voiceover.