# Voice changer
https://www.youtube-nocookie.com/embed/d3B3BiCmczc?rel=0
## Overview
Voice changer (previously Speech-to-Speech) allows you to convert one voice (source voice) into another (cloned voice) while preserving the tone and delivery of the original voice.
Voice changer can be used to complement Text-to-Speech (TTS) by fixing pronunciation errors or infusing that special performance you’ve been wanting to exude. Voice changer is especially useful for emulating those subtle, idiosyncratic characteristics of the voice that give a more emotive and human feel. Some key features include:
- Greater accuracy with whispering
- The ability to create audible sighs, laughs, or cries
- Greatly improved detection of tone and emotion
- Accurately follows the input speaking cadence
- Language/accent retention
:::accordion{title="Watch a video of voice changer in action"}
https://www.youtube-nocookie.com/embed/GBdOQClluIA?rel=0
:::
## Guide
Audio can be uploaded either directly with an audio file, or spoken live through a microphone. The audio file must be less than **50mb in size**, and either the audio file or your live recording cannot exceed **5 minutes in length**.
If you have material longer than 5 minutes, we recommend breaking it up into smaller sections and generating them separately. Additionally, if your file size is too large, you may need to compress/convert it to an mp3.
### Existing audio file
To upload an existing audio file, either click the audio box, or drag and drop your audio file directly onto it.
### Record live
Press the **Record Audio** button in the audio box, and then once you are ready to begin recording, press the **Microphone** button to start. After you’re finished recording, press the **Stop** button.
You will then see the audio file of this recording, which you can then playback to listen to - this is helpful to determine if you are happy with your performance/recording. The character cost will be displayed on the bottom-left corner, and you will not be charged this quota for recording anything - only when you press “Generate”.
**The cost for a voice changer generation is solely duration-based at 1000 characters per minute.**
## Settings
Learn more about the different voice settings [here](/guides/elevencreative-playground-text-to-speech#settings).
:::callout{intent="info"}
Voice changer adds an additional setting to automaticaly remove background noise from your recording.
:::
## Support languages
`eleven_english_sts_v2`
Our multilingual v2 models support 29 languages:
_English (USA, UK, Australia, Canada), Japanese, Chinese, German, Hindi, French (France, Canada), Korean, Portuguese (Brazil, Portugal), Italian, Spanish (Spain, Mexico), Indonesian, Dutch, Turkish, Filipino, Polish, Swedish, Bulgarian, Romanian, Arabic (Saudi Arabia, UAE), Czech, Greek, Finnish, Croatian, Malay, Slovak, Danish, Tamil, Ukrainian & Russian._
The `eleven_english_sts_v2` model only supports English.
[Learn more about models](/guides/overview-models)
## Best practices
Voice changer excels at **preserving accents** and **natural speech cadences** across various output voices. For instance, if you upload an audio sample with a Portuguese accent, the output will retain that language and accent. The input sample is crucial, as it determines the output characteristics. If you select a British voice like “George” but record with an American accent, the result will be George’s voice with an American accent.
- **Expression**: Be expressive in your recordings. Whether shouting, crying, or laughing, the voice changer will accurately replicate your performance. This tool is designed to enhance AI realism, allowing for creative expression.
- **Microphone gain**: Ensure the input gain is appropriate. A quiet recording may hinder AI recognition, while a loud one could cause audio clipping.
- **Background Noise**: Turn on the **Remove Background Noise** option to automatically remove background noise from your recording.
## FAQ
| What is Voice Changer? Voice Changer, previously known as Speech to Speech, allows you to convert one voice (source voice) into another (cloned voice) while preserving the tone and delivery of the original voice. The possibilities are endless. It can be used to complement Text to Speech by fixing pronunciations or infusing that special performance you’ve been wanting. It can also be used to help extend the range of voice actors by giving them access to a wide selection of different voices and tones. We do offer an end-to-end solution for dubbing, but if you still want to dub in the traditional way, you can take advantage of voice changer to help get the right voice for your project. The maximum length of audio that can be converted is 5 minutes. For current pricing, see [ElevenCreative](https://elevenlabs.io/pricing?price.section=speech_to_speech#pricing-table) and [ElevenAPI](https://elevenlabs.io/pricing/api). For more information, please see our [guide.](/guides/elevencreative-playground-voice-changer) |
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| How much does Voice Changer cost? Voice Changer, previously known as Speech to Speech, pricing depends on whether you generate via the website or the API. For current rates, see [ElevenCreative](https://elevenlabs.io/pricing?price.section=speech_to_speech#pricing-table) and [ElevenAPI](https://elevenlabs.io/pricing/api). |
| What is the max input length when using Voice Changer? The current maximum input length when using Voice Changer, previously known as Speech to Speech, is 300 seconds or 5 minutes of audio. This is the same across all subscriptions. |
| Which formats can be used as the input audio for Voice Changer? The following file formats can be used as the input audio for Voice Changer. Audio: MP3 M4A FLAC OGA OGG WAV Video: MKV WEBM MP4 MOV |
| How do I download generated files from Voice Changer? You can download the generated files in two ways: You can download a generated file immediately by clicking the download button on the bottom right after generating the content. Previously generated files can be downloaded from your history. To access your history, log in to your account and select **Voice Changer** in the sidebar, then click the **History** tab in the panel on the right side of the screen. You can click the download button to download any file from your history as either an MP3 or WAV file. For additional download options, click **Advanced**. |
## Related pages
- [Administration](./administration-index.md)
- [API reference](./api-reference-index.md)
- [Changelog](./changelog-index.md)
- [ElevenAgents](./elevenagents-index.md)
- [ElevenAPI](./elevenapi-index.md)
- [ElevenCreative](./elevencreative-index.md)
- [ElevenLabs Documentation Docs](../index.md)
- [General Troubleshooting FAQ](./troubleshooting-index.md)
- [General Website FAQ](./website-index.md)
- [Help Center](./help-center-2-index.md)
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