Tired of every AI video sounding robotic? With a few simple tools, you can replace any default AI voice with a custom one that matches your style — from cinematic narrations to branded voiceovers.
Generate AI Video
Use Google Veo (or any text-to-video generator like Pika or Runway) to create your video. Once you’re happy with the visuals, download the MP4 file.
Check Audio Quality
Before replacing the voice, play your video and note:
- Length of the clip
- Type of voice or background sound
This ensures your replacement audio will sync properly later.
Extract Original Audio
Use a video-to-audio converter (e.g., Media io, Convertio, or VEED) to extract the MP3 track from your video.
Save the file with a clear name like
“scene1_original.mp3”.
Clean and Prepare Audio
Optional but recommended: Run the MP3 through a noise reducer such as Auphonic or Audacity. This removes unwanted background noise before cloning or replacing.
Clone or Choose Voice
Go to ElevenLabs Voice Changer.
You can either:
- Use one of their pre-made professional voices, or
- Clone your own voice using a 1-minute sample.
Upload your audio and let ElevenLabs generate your custom voice version.
Adjust Voice Settings
Tweak these settings for best results:
- Stability: Controls tone consistency
- Similarity: How close it stays to the chosen voice
- Style exaggeration: Adds emotion or energy
Experiment with small adjustments to match the mood of your video.
Download Audio
Export your generated audio as MP3 or WAV. Rename it clearly (e.g.,
“scene1_customvoice.mp3”) so it’s easy to align later.
Sync Audio and Video
Open CapCut (or Premiere Pro/DaVinci Resolve).
- Import the original MP4 video
- Add the audio layer
- Mute original track
- Align the voice using the waveform for lip-sync precision.
Note: Record a few seconds of silence at the start of your sample audio before cloning. It helps AI tools capture cleaner background noise profiles.