DupDub Voice Generator

The voice library is the headline. DupDub lists 700+ stock voices with more than 1,000 styles, spanning English, Spanish, Japanese, Arabic, Portuguese, Russian and dozens more. Each entry names its language and accent, so you can match a Brazilian Portuguese narrator to a Brazilian audience instead of settling for generic Portuguese. Because the voices come from Mobvoi's in-house speech models, the tone stays consistent between projects. That matters more than it sounds.

Cloning doesn't require a training run. You upload a short audio clip in MP3, WAV, MP4 or MOV, or record directly, and the clone is generated in seconds. The result carries your tone and rhythm and can speak 47 languages and 50+ accents, so one recording covers a whole multilingual campaign. Access is restricted to the original speaker, and DupDub states it enforces privacy controls around the samples. No training. No waiting. That keeps setup trivial.

Most AI voices stumble on brand names, place names and technical terms. DupDub gives you three ways to fix that: Phoneme lets you spell out how a word should sound, Say As swaps a word on the fly, and a custom Lexicon stores replacements you can reuse. Alongside those, you can adjust pitch, speed and rhythm, and set precise pauses so a line lands the way you intended. Small settings. Big difference.

For audiobooks, dialogues and multi-role narration, you can merge several voices into a single audio file. That means you don't have to stitch clips together in an external editor to get a conversation. Combine it with the per-character voice settings and you can give each character a distinct delivery without leaving the browser. One file, many speakers.

You can turn a still image into a talking avatar, or design your own avatars on the paid tiers. Higher plans add multi-character talking avatars and motion avatars, and the feature is available on Android, iOS and web, so a phone photo works as the source. For creators who need a face on screen without filming, it's the fastest path in the suite. No camera needed.

Upload a video or paste a URL, choose source and target languages, and DupDub translates, dubs and lip-syncs the result. It handles multiple speakers, identifies who is talking, and preserves each speaker's tone and delivery style. Input supports 50+ languages and output covers 30+. You can also edit the translated text and re-dub a single line without reprocessing the whole video. Fix one line, keep the rest.

AI transcription converts speech to text and doubles as a subtitle generator with SRT export. You can transcribe screen recordings and voice notes, add automatic subtitles to finished videos, and use subtitle alignment to sync text to audio. Transcription minutes are capped per plan, with file-length limits that grow from 20 minutes on Personal to 60 minutes on Professional.

DupDub exposes APIs for text to speech, voice cloning, AI avatar, video translation, transcription and more, with SSML support for fine control over output. API access appears from the Personal plan upward and scales with higher tiers or a custom enterprise agreement. That makes technical documentation, developer docs and error handling something to plan for before you commit. Worth reading the docs first.