Visemix is an AI lip sync generator that makes a person in a video or photo speak your audio with naturally matched mouth movement. The workflow starts locally: upload a video or a portrait photo and add a voice by uploading audio, recording in the browser, or entering text for text-to-speech, and Visemix checks format, size, duration, resolution, and timing in your browser before anything is uploaded or any credit is touched. Only when the check passes do you sign in and submit a private generation job, and every finished result downloads without a watermark. Use cases span talking photos from a single portrait, presenter-style AI avatars for marketing and product explainers, short vertical social clips, and narrated lesson videos for education; an end-to-end dubbing workflow is in preview. Quality options and language settings are adjustable, and a dedicated mode builds talking-photo videos from dialogue and scene direction. Visemix is upfront about what makes results better — a clear, front-facing face in steady light, and audio of similar length to the video. The file check is free; generation runs on trial or purchased credits.