Audio
AI Voice Cloning
Most voice cloning tools end at the audio file. Martini clones a voice from 30 seconds of reference audio with ElevenLabs and Fish Audio, then wires that voice ID directly into talking-head, lip-sync, and sequence nodes on the same canvas. Clone once, reuse across every script, every video, every language.
What this feature solves
Voice cloning is the audio counterpart to character consistency — a recognizable persona voice across every video, every script, every language, without booking the original voice talent for every session. The capability is here: ElevenLabs voice cloning produces lifelike voice IDs from a short reference recording, and the cloned voice handles new scripts indistinguishably from the source for most listeners. The capability is also dangerous, which is why most tools wrap the workflow in compliance gates that make legitimate brand and persona work harder than it should be.
The deeper problem for production work is integration. A cloned voice is a means to an end — narration, talking-head video, dub, multilingual content. Most voice cloning tools end at the WAV file, leaving the integration with video, lip-sync, and the rest of the workflow to a manual handoff. Generating the cloned voice in one tab, downloading the file, importing into another tool for lip-sync, then re-importing into your NLE undoes the speed advantage that AI was supposed to deliver.
And then there is the multi-language and multi-script reality. The point of a cloned voice is repeatable use. Building a brand voice for a SaaS product means using that voice across hundreds of videos over years, in multiple languages, across multiple campaigns. Without a workflow that stores the voice ID and chains it into every downstream content production, the cloned voice becomes a one-off rather than the brand asset it should be.
Why Martini is different
Martini treats voice cloning as a node in the production chain rather than a standalone tool. Drop a 30-second reference recording into an ElevenLabs voice-clone node. The cloned voice ID generates and saves on the canvas. From there, every downstream audio node can pull from that voice ID — every script, every take, every campaign. The voice becomes a reusable canvas asset rather than a per-session generation, and brand voice consistency becomes structural rather than aspirational.
Voice-to-video chaining is the unlock. Wire the cloned voice into a Kling Avatar lip-sync node alongside a portrait reference, and the persona speaks the new script with the locked voice and locked face. For a brand spokesperson series, the same voice and face drive every video. For an AI influencer, the persona's voice and look stay identical across daily posts. For a course host, students hear the same instructor in every module. The chain produces persona consistency that single-tool workflows cannot.
Multi-language production runs as fanout. Clone the voice once. Generate Mandarin scripts with Fish Audio, European-language scripts with ElevenLabs multilingual mode, all reading the same persona reference where supported. Chain each into matching lip-sync. Five languages, same persona, one canvas. The cloned voice becomes a global brand asset rather than a single-locale tool, and international content production scales without losing identity.
Common use cases
Brand voice cloning for marketing content
Clone the voice of a CEO, founder, or designated brand spokesperson and use it across every marketing video, podcast trailer, and brand asset.
Persona voice for AI influencers and creators
Design a voice for a synthetic persona or clone a real reference, then reuse the voice ID across daily TikTok, Reels, and Shorts content.
Multilingual dub from one source voice
Clone a voice in the source language and ship the same persona in five additional languages without re-recording per locale.
Course narration with consistent instructor
Clone an instructor voice once and generate every module narration with identical timbre — students hear the same teacher in every lesson.
Audiobook and long-form narration
Use a cloned voice to produce hours of narration for audiobooks, podcasts, and explainer series with consistent delivery across episodes.
Custom voice design for synthetic personas
Use ElevenLabs voice design to create a synthetic voice that does not exist in the real world, then reuse the voice ID like any clone.
Recommended model stack
elevenlabs
audioIndustry-leading voice cloning quality from short reference samples with strong multilingual support.
fish-audio-s2
audioStrong voice cloning for Asian-language coverage and additional voice variety beyond ElevenLabs.
kling-avatar
videoPair the cloned voice with talking-head video that lip-syncs to the cloned voice ID.
nano-banana-2
imageGenerate the canonical portrait that pairs with the cloned voice for persona consistency.
omnihuman
videoFull-body talking video for cloned-voice presenters in vlog and walking-and-talking contexts.
How the workflow works in Martini
- 1
1. Prepare a clean reference recording
Record or source 30 seconds of clean speech in the voice you want to clone — natural delivery, minimal background noise, single speaker. Quality of the clone scales with quality of the source.
- 2
2. Drop the reference into a voice-clone node
Wire the audio file into an ElevenLabs (or Fish Audio for Asian languages) voice-clone node on the canvas. The clone generates and produces a voice ID you can reuse.
- 3
3. Save the voice ID as a canvas asset
Pin the voice ID in a labeled node on the canvas. Future audio nodes pull from this ID, so the cloned voice becomes a structural asset rather than a per-session re-clone.
- 4
4. Wire the voice into a script-to-speech node
Drop a script into a text node and connect both the script and the voice ID into an ElevenLabs TTS node. The persona speaks the new script with the cloned voice.
- 5
5. Chain into video and lip-sync
For talking-head content, wire the cloned voice and a portrait reference into a Kling Avatar or OmniHuman lip-sync node. Voice and face hold; only the script changes.
- 6
6. Reuse across campaigns and languages
Save the canvas as a template. Every future video, every multilingual variant, every campaign starts from the same cloned voice node — no re-cloning per project.
Example workflow
A SaaS company wants their CEO to host a weekly product update video without committing the CEO's time per recording. The team records 30 seconds of clean reference audio of the CEO speaking naturally. They wire the audio into an ElevenLabs voice-clone node and produce the CEO voice ID. The voice ID is pinned as a labeled canvas asset. They build the weekly canvas: text node for the week's script, ElevenLabs TTS node with the CEO voice ID, Kling Avatar lip-sync node with a high-resolution CEO portrait, sequence builder with screen-recording demo inserts. Each Friday, the marketing team writes the script, runs the canvas, and ships a CEO-hosted product update video in under an hour. The CEO reviews and approves; the brand voice and face stay perfectly consistent across every episode for years.
Tips and common mistakes
Tips
- Use a clean reference. Background noise, music, and crosstalk in the source produce muddy clones. Aim for studio-quality or quiet-room recording.
- Use 30-60 seconds of natural speech as the reference. Longer is not always better; quality matters more than duration.
- Pin the voice ID as a labeled canvas node. Future projects pull from the same source rather than re-cloning per workflow.
- For multilingual production, generate the same script across language nodes rather than relying on automatic translation.
- Save the cloned voice + portrait combination as a persona template. The pair is more valuable than either alone.
Common mistakes
- Cloning voices without consent. Martini handles the workflow; the legal and ethical policy is on the operator. Get permission.
- Using a noisy or compressed reference recording. The clone inherits and amplifies every artifact.
- Re-cloning the voice per project instead of reusing the saved voice ID. Drift creeps in across re-clones.
- Mixing different voice IDs across episodes of the same content series. Audiences identify the persona by voice as fast as by face.
- Using a stylized synthetic voice for a corporate brand video. Match the voice to the brand context, not the trend.
Related how-to guides
Related features
AI Voiceover Generator — Narration That Plugs Into Video Workflows
Generate narration and connect it to video workflows on Martini using ElevenLabs, Minimax Speech, and other audio models.
AI Lip Sync — Sync Voice and Dialogue to Portraits and Video
Sync voiceovers, dialogue, and music to portraits and video on Martini using lip-sync models.
AI Talking Head Video — Spokesperson, Course, and Narration
Produce spokesperson, course, and narration videos on Martini's canvas — Kling Avatar, OmniHuman, ElevenLabs, Fish Audio, locked identity end to end.
AI Influencer Video Generator — Repeatable Character Pipeline
Design, generate, and scale AI influencer videos on Martini — character library, voice cloning, lip-synced video, all on one canvas.
AI Sound Effects Generator — SFX for Scenes and Product Videos
Skip the SFX library hunt — generate scene-matching sound effects on Martini's canvas with ElevenLabs SFX and chain into video and voice workflows.
AI Music Generator — Background Music for AI Video
Generate background music and soundtracks for AI video projects on Martini.
Related docs
Related reading
Comparisons
Frequently asked questions
How much reference audio do I need for voice cloning?
ElevenLabs Instant Voice Cloning works with 30-60 seconds of clean reference audio. Professional Voice Cloning (the higher-quality tier) uses several minutes of audio for stronger results. For most brand and persona work, a clean 30-second sample produces a usable voice ID; for production-grade narration, invest in the longer professional clone path.
What languages does voice cloning support?
ElevenLabs cloned voices speak across 30+ languages — clone in English and the same voice ID can deliver the same script in Spanish, French, German, Portuguese, Italian, Japanese, Korean, Mandarin, and more. For native Asian-language clones with stronger local accents, Fish Audio is the alternative on the canvas.
Is it legal to clone someone's voice?
Voice cloning is legal in most jurisdictions when you have consent from the person whose voice you are cloning. For commercial use, get explicit consent. Cloning without consent — especially of public figures — runs into right-of-publicity and likeness laws that vary by region. Martini provides the workflow; legal compliance is on the operator.
How does this connect to lip-sync video?
Wire the cloned voice ID into an ElevenLabs TTS node with your script, then chain the audio output into a Kling Avatar or OmniHuman lip-sync node alongside a portrait reference. The voice and face combine into a talking-head cut where mouth shapes match the cloned voice and identity matches the portrait — full persona consistency in one chain.
Can I design a voice that does not exist in the real world?
Yes — ElevenLabs voice design lets you create synthetic voices from text descriptions ("warm older male voice with British accent and slight rasp"). The resulting voice ID behaves like any cloned voice and can be reused across every script. This is the standard path for AI personas where you do not want to clone a real person.
How does this compare to running ElevenLabs cloning directly?
ElevenLabs direct gives you the voice ID and a TTS interface. Martini chains the voice ID into video, lip-sync, sequence, and NLE export on one canvas — and saves the cloned voice as a reusable canvas asset that drives every future project. For one-off audio clones, ElevenLabs direct is fine. For brand-voice work that needs to compound across hundreds of videos, the canvas integration is the difference.
Build it on the canvas
Open Martini and wire this workflow up in minutes. Free to start — no card required.