Guides
Voice cloning, done legally and done well
Thirty seconds of clean audio, one consent recording, and a great deal of care.
Last checked 2026-08-14
In short
Voice cloning copies the timbre of a voice from a short reference recording so a model can read new text in it. Naadly uses OpenVoice V2 and needs roughly 30 seconds of clean speech; before it will clone anyone it records a spoken consent statement and keeps a signed, hashed consent record. Cloning is on paid plans from $15 a month.
What a clone is - and is not
A clone captures who is speaking: the timbre, the resonance, the general placement of the voice. It does not capture how they speak - the timing, the emphasis and the habits that make someone recognisable to their own family. That is why a clone of your own voice reading a new script sounds like you and does not sound like you talking.
If what you actually want is your performance in a different voice, use the voice changer instead: you act the line, the model swaps the timbre, and your timing survives.
What a usable reference sounds like
- 30-60 seconds of continuous speech. More is not better; cleaner is better.
- One speaker, no music, no laughter, no phone.
- Normal delivery. Reference a shout and everything you generate will shout.
- Same language as the scripts you intend to read, where you can.
- A quiet room and a fixed distance from the mic. Room echo is copied faithfully, and it is the most common reason a clone sounds thin.
Consent is the part that has teeth
Cloning a voice that is not yours without documented permission is how services get sued and clients get dropped, and in a growing number of jurisdictions it is unlawful outright. Naadly makes the paperwork part of the flow rather than a checkbox: before a clone is created it asks for the speaker's name, the relationship, and a recording of the speaker reading a consent statement aloud. The record keeps a hash of the reference clip - proof that the consent attaches to this recording - and it survives account deletion, because it exists to protect the person who was cloned rather than the person who did the cloning.
A clone can be deleted at any time; the consent record remains, and either party can write to us to ask what is held.
When cloning is the wrong answer
- You need emotion - use the voice changer with an acted reference.
- You need one consistent brand voice forever - a catalogue voice never leaves the company, changes its mind, or raises its rate.
- You need forty voices for a video game - cast from the catalogue.
- You want a celebrity or a colleague who has not agreed - no.
Step by step
- Record 30 clean seconds One speaker, quiet room, normal delivery, no music. WAV or MP3.
- Record the consent statement The speaker reads the statement aloud in the same session. Naadly stores it with a hash of the reference clip.
- Create the voice Upload both, name the voice, and it appears in your own catalogue alongside the public voices.
- Test it on a hard line Numbers, a name, a question. If it sounds thin, the reference room was the problem, not the model.
- Use or delete Render with it like any other voice, or delete it; the consent record stays as the evidence it was allowed.
Questions
- How much audio do I need to clone a voice?
- About 30 seconds of clean single-speaker speech. Quality of the recording matters far more than length.
- Is voice cloning legal?
- Cloning your own voice, or someone's with documented consent, is legal in most places. Cloning an identifiable person without permission exposes you to personality, publicity and - increasingly - specific AI statutes. Naadly requires a spoken consent record.
- Can I clone a voice for free?
- Not on Naadly: cloning is on paid plans from $15 a month. Free cloning tools generally pay for themselves with your recording.
- Do you train models on my voice?
- No. Reference audio is used to create your clone and nothing else, and it is not used to train any model.