Clone a Voice from as Little as 5 Seconds
Upload or record an authorized voice sample — MP3 or WAV, at least 5 seconds — confirm you hold the rights, and preview the cloned voice next to the original before you save it. There is nothing to trim: we analyze the first 60 seconds and keep the best 30 for cloning. Then use the voice anywhere on BreezeBlue: text to speech, Studio, and the API.
From sample to reusable voice in four steps
- 1
Add an authorized sample
Upload at least 5 seconds of MP3 or WAV (up to 5 MB), or record 5 to 30 seconds straight in the browser. One speaker, minimal background noise — we analyze the first 60 seconds and keep the best 30 for cloning.
- 2
Confirm consent and rights
Cloning starts only after you confirm you hold the necessary rights or consent for the voice and agree not to use it for deception or harm.
- 3
Preview against the original
Generate a preview and listen to the cloned read side by side with your reference sample before deciding whether to keep it.
- 4
Save and put it to work
Save the voice to your library, then use it in text to speech, Studio projects, or any /v1 API request — and delete it whenever you choose.
What your sample needs — and what you control
Voice cloning on BreezeBlue is built around a simple contract: short, clean, authorized audio in — a private, deletable voice out.
Duration and format
MP3 or WAV, up to 5 MB, at least 5 seconds long; in-browser recordings run 5 to 30 seconds. You never have to trim or pad a file: we analyze the first 60 seconds, keep at most 30 — cut at a complete sentence, never mid-word — and normalize the excerpt to a consistent loudness.
What makes a good sample
A quiet room, a single speaker, and a natural reading pace. Skip music, effects, and cross-talk. If the preview sounds thin, a cleaner recording usually fixes more than a longer one.
Consent and rights
Every clone starts with an explicit confirmation that you hold the rights or consent to use the voice — your own, or a speaker who has clearly agreed. No confirmation, no clone.
Deletion and control
Cloned voices are private to your account. Remove one at any time from your voice library or with a single API call; a deleted voice can no longer be used to generate audio.
Preview, save, then use it everywhere
You hear the clone before you commit to it, and once saved it behaves like every other BreezeBlue voice — directable, reusable, and available on both the web app and the API.
Preview before you commit
The workflow generates a cloned read you can play next to your reference sample. Compare them honestly: if the match is not close enough, adjust the sample and generate again before saving anything.
Save it as a reusable voice
A saved clone becomes a named voice in your library. Use it across sessions and projects without re-uploading the sample — the identity stays consistent every time you generate.
Direct it in text to speech and Studio
Pick the cloned voice in the text to speech workspace or a Studio project and direct each line in plain language — pacing, emotion, and tone — while the voice identity stays put.
Voice cloning API
Create a cloned voice programmatically from an authorized sample, list and manage your voices, and reference the returned voice id in any /v1 text-to-speech request. Deleting a voice is one call too.
What to expect from a short-sample clone
Honest expectations beat impressive promises.
A short sample captures the identity of a voice — its timbre, register, and overall character — well enough for narration, character work, and everyday production. It will not capture every habit of a speaker: five seconds cannot carry someone's full range of moods and pacing, so a cleaner, slightly longer read gives us more to choose from. More is not endlessly better, though — reference audio beyond 30 seconds pulls the clone further from the original, which is why we analyze the first 60 seconds and keep the best 30 for you instead of asking you to trim.
Once saved, a cloned voice stays directable. In the public Voice Direction benchmark (August 2026), Breeze TTS 2 scored 4.25 Overall VDS for following natural-language performance instructions while holding speaker similarity at 0.67 — the strongest result among the models evaluated. In practice, that means you can ask a cloned voice for a slower, warmer, or more tired read and it keeps sounding like the original speaker.
See the Voice Direction benchmark resultsWhat clones well
Timbre, register, accent color, and overall character — the qualities that make a voice recognizable — come through even from short samples.
What needs more than 5 seconds
Subtle habits like breath placement and idiosyncratic pacing need more material to choose from. If the preview feels generic, bring a cleaner recording or a slightly longer read — you still do not trim anything yourself, since we keep the best 30 seconds either way.
What stays in your hands
Delivery is directable after cloning: instructions like “quieter, more deliberate, on the edge of laughter” shape the performance without shifting the voice identity.
Built for consent, not impersonation
A cloning tool is only as trustworthy as its boundaries. These are ours.
Consent is a hard gate
You must explicitly confirm you hold the rights or consent for every sample before cloning begins. Cloning a voice without the speaker's permission violates BreezeBlue's terms of use.
No deception, no harm
Platform-generated audio must not be used to defraud, mislead, or harass anyone. The consent confirmation you accept when cloning covers exactly this, and violations are grounds for losing access.
Private by default
A cloned voice belongs to your account. It does not appear in the public Voice Library, and other users cannot generate audio with it.
No sample you hold the rights to? You do not need one to get a distinctive voice — describe an original voice with AI Voice Design
Where your cloned voice goes to work
A saved clone is a first-class voice across every BreezeBlue surface.
Text to speech you can direct
Pick your cloned voice in the text to speech workspace and steer each line with plain-language instructions.
AI voiceover for video and ads
Turn scripts into finished voice tracks for video, ads, product demos, and tutorials — read in the voice you cloned.
Character voices for original casts
Give an original cast consistent, reusable voices — cloned, designed, or picked from the library — and direct them line by line.
Podcast voices from a written script
Narrate episodes from a script with a voice your audience already knows, at a pace you control.
AI voice design without a sample
When there is no reference audio, create an original voice from a text or image description instead of cloning.
The BreezeBlue Voice Library
Browse curated, ready-to-use voices with real character — a faster start when you do not need a specific person's voice.
Start free, add voice slots as your library grows
BreezeBlue is free to start, with free credits every day. Paid plans add more monthly credits and voice slots for the voices you clone and keep.
Compare plans and pricingVoice cloning, honestly answered
How much audio do I need to clone a voice?
Five seconds is the minimum. Uploads are MP3 or WAV, up to 5 MB, with no upper length to worry about, and in-browser recordings run 5 to 30 seconds. We analyze the first 60 seconds of an upload and keep at most 30, cut at a complete sentence rather than mid-word, so there is nothing to trim or pad on your side. Within that, clean audio matters more than length — a quiet 20-second sample usually beats a noisy one from a busy room.
What makes a good reference sample?
Record in a quiet space with a single speaker reading naturally — no music, effects, or overlapping voices. If the cloned preview sounds thin or muffled, re-recording the sample usually improves the result more than anything else.
Whose voice am I allowed to clone?
Only a voice you hold the rights or documented consent to use — your own, or a speaker who has explicitly agreed. Every clone starts with a consent confirmation, and cloning someone without permission violates BreezeBlue's terms of use.
Can I hear the clone before saving it?
Yes. The workflow generates a preview you can play side by side with your original sample. Save the voice only if the preview convinces you; otherwise adjust the sample and generate again.
Can I delete a cloned voice?
At any time. Remove it from your voice library in the app, or call the delete endpoint on the voices API. A deleted voice can no longer be used to generate audio.
Is there a voice cloning API?
Yes. The Developer API lets you create a cloned voice from an authorized sample, list and manage your voices, and use the returned voice id in any /v1 text-to-speech request — the same voices you see in the web app.
Can I use a cloned voice commercially?
Audio generated on BreezeBlue's paid plans can be used in commercial projects, provided you hold the rights to the cloned voice itself and your use respects the consent you confirmed.
How much does voice cloning cost?
BreezeBlue is free to start, and every user can claim free credits each day. Paid plans add more monthly credits and voice slots as your cloned library grows. See the full breakdown on our pricing page.