A face, not a waveform
Most audio to video converters put a still picture or a moving waveform behind your MP3 so a video platform will accept it. That is fine for a song upload, and free editors like CapCut or VEED do it well. When the video should look like someone talking, a voiceover for an ad, a clip from a podcast, a lesson, Percify lip syncs a photo to your audio so the mouth, jaw and head move with every word.
Bring your own audio, or type it
Already have a recording? Upload it as it is. Have only words? Pick one of the voices or clone your own from a short clean sample, and the photo speaks your script. Every voice model and its price is on the AI voice generator page.
What it costs
You pay per second of video. On the fast lip sync model a 15 second clip is 30 credits and a 60 second clip is 120, at 480p. The higher quality model renders 720p at 6 credits a second. The playground quotes the exact cost before anything runs, and a run that fails is refunded.
Want the photo itself to move, with no speech? That is image to video. Want a full avatar of yourself, face and voice saved once? Start at the AI avatar generator.