Ranked #1 in Speech Arena
AI voice conversionfor your recorded audio
How to convert a voice recording
Bring a clip to the voice changer, choose a voice, and compare the result with your original.
Start with a recording
Use a clear clip of one speaker. A clean recording makes it easier to judge the voice change without background music or overlapping speech.
Choose the target voice
Pick a voice in the voice changer. Try the same recording with different voices to find the delivery that fits your project.
Listen and download
Compare the original recording with the result. Check the words and phrasing, then download the converted audio for your edit.
Conversion, cloning, or text to speech?
Choose the workflow that matches what you have and what you want to make.
Voice conversion
Change the voice in an existing clip. Compare the result and download the converted recording.
Open voice changerVoice cloning
Create a custom voice to read new scripts. Use a recording of the voice you have permission to clone.
Try voice cloningText to speech
Type a script and choose a voice. Text to speech creates a recording without a spoken input clip.
Generate speechTry a different creative direction
Voiceover experiments
Try a different voice for a recorded read before committing to a direction. Compare the same passage so you can focus on the change in voice.
Character dialogue
Explore voices for prerecorded character lines. Review each result in the scene, where pauses and emphasis matter as much as the voice itself.
Creative audio
Create alternate reads for short clips, demos, and audio projects. Keep the original recording so you can return to it during editing.
Get more from your source audio
A useful comparison starts with a clear recording. Pick a short passage that represents the final project.
Prepare one clear performance
Use a short recording of one speaker, with the pauses and emphasis you want to keep. Leave out background music and overlapping dialogue. If words are hard to hear in the source, record another take before comparing voices.
Start with a passage from the actual project. A video introduction, character line, or paragraph of narration gives you a more useful test than an unrelated sample.
Compare the same passage
Keep your original recording and listen to it beside each converted version. Check names, sentence endings, and changes in emphasis. Then place the result in your edit to hear whether it fits the scene.
Choose recordings and voices you have permission to use. Download the result only after you have checked the full clip, including its quietest and fastest passages.
Fluent and native, worldwide
Explore Sonic text-to-speech voices in 44 languages for localized narration, customer conversations, and voice agents. Compare language and accent samples, then test your translated script for pronunciation and pacing.
American English, 3 voices
American English
Lifelike, expressive voices for every use case
Listen to Sonic voice samples for narration, character dialogue, and customer experiences. These text-to-speech examples help you compare delivery. To change a voice in an existing recording, try the voice changer.
Support
Turn customer support answers into spoken responses with speech synthesis. Read service updates and troubleshooting steps in a consistent voice across calls and applications.
Gaming
Generate character dialogue from your game's scripts. Compare voices for each role, then listen to new lines in context to check pacing and delivery.
Content
Create voiceovers for videos, tutorials, and product explainers from text. Revise a script and generate new narration without recording each line again.
Media
Turn written articles and stories into spoken audio. Use text-to-speech for podcast introductions or narrated news, checking names and pronunciation before publishing.
Healthcare
Read appointment reminders and patient service information from your team's reviewed text. Use a consistent voice for routine instructions and scheduling updates.
Sales
Add spoken narration to product demonstrations and sales explainers. Test your script in different voices, then update the audio when your product or message changes.
Voice Agents
Give AI voice agents spoken responses generated from your application's text. Choose a voice for greetings and conversations, then test how it sounds across short and longer replies.
Dubbing
Generate speech from translated scripts for your localization workflow. Compare voices in supported languages and review pronunciation and timing before adding the audio to a video.
Avatars
Pair a digital avatar with synthesized speech for presentations and guided experiences. Generate dialogue from text and coordinate audio playback with your avatar's animation.
Logistics
Turn shipment updates and dispatch instructions into spoken messages. Connect speech synthesis to your application so the audio reflects the latest delivery information.
Recruiting
Create spoken interview introductions and candidate scheduling messages from approved scripts. Keep instructions consistent and regenerate the audio when your hiring process changes.
Accessibility
Offer audio versions of written guides, articles, and learning materials. Let people listen to your content and follow along with the original text at their own pace.
Explore more voice tools
AI voice conversion FAQs
What is AI voice conversion?
Voice conversion changes the voice in an existing audio recording. You start with speech rather than a written script. In Cartesia's voice changer, upload a clip, select a target voice, and listen to the result.
How is voice conversion different from voice cloning?
Conversion changes the voice of a particular recording. Cloning creates a custom voice from a sample so you can generate new speech in that voice. If you want your own voice to read new scripts, start with voice cloning.
How is voice conversion different from text to speech?
Voice conversion takes an audio recording as input. Text to speech takes written text and generates audio. Choose the voice generator when you have a script but no recording.
Can I use voice conversion for live gaming or calls?
Cartesia's public voice changer works with uploaded recordings. Use it to prepare character lines or other clips. It does not replace your live microphone in a game or call. For conversational applications, explore Managed Agents.
Is the online voice converter free?
You can try the public voice changer without signing up, subject to its usage limits. The tool shows your remaining conversions when available. See current plans for account features and usage.
What recording should I upload?
Start with a short, clear recording of one speaker. Avoid clipping, loud music, and overlapping voices. The public tool accepts audio uploads such as WAV and MP3 and displays an error if the file cannot be processed. Use a recording you have permission to change.
Can I download the converted voice?
Yes. After a successful conversion, the voice changer displays the result with playback and a Download button. Listen to the result before adding it to your project.
Does voice conversion translate the recording?
Voice conversion changes the speaker's voice, not the language of the script. For another language, prepare a translated script and explore Cartesia's language examples before generating speech.
Will the result sound exactly like the target voice?
The result depends on the recording and target voice. Compare a representative clip and listen for pronunciation, pauses, and vocal detail. Trying the same passage with several voices helps you choose the right fit.
Can I use a converted voice in a commercial project?
Check the terms that apply to the service, recording, and target voice before publishing. Use material you have the rights to use. See Cartesia's terms of service and acceptable use policy.
How do I convert a voice recording for a video?
Export the spoken audio from your video editor, then open the voice changer and upload a short passage. Choose a voice and convert the clip. Listen to the result alongside the original, then download the converted audio and add it to your edit. Check timing against the picture before using it in the final video.
Can voice conversion remove noise or repair a poor recording?
Choose a clear source recording before testing voices. Voice conversion changes the speaker's voice; it is not a substitute for recording clean speech or using an audio restoration tool. If the source has clipped words, loud music, or overlapping speakers, record another take or prepare the audio before converting it.
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