What is a Voice Changer?

AI advancements have played a pivotal role in voice conversion, making the generated voices sound incredibly lifelike.

Introduction to Voice Changer Technology

A voice changer is a tool that modifies one's voice, allowing it to mimic another person's. This innovative technology, powered by artificial intelligence, goes through a process called voice cloning. It encodes the voice we want to mimic, known as the target voice, to produce an audio output that retains the original message's intonation but matches the target speaker's voice identity.

AI in Voice Changing

AI advancements have played a pivotal role in voice conversion, making the generated voices sound incredibly lifelike. This has opened up numerous opportunities across various sectors, revolutionizing how content is produced and interacted with while also optimizing time and production costs.

Potential Applications of Voice Changer Technology

There are many potential uses for voice changer technology, including:

  • Filmmaking: Voice cloning technology allows actors to share their voice databases with producers, eliminating the need for physical presence on set or studio. It also allows for easier post-production edits.
  • Video Game Development: This technology allows developers to experiment and make corrections on-the-spot without the need for actors to be physically present.
  • Medicine: Patients who have lost their ability to speak can be given a chance to communicate again in their own voice.
  • Personalized Virtual Assistants: Home users may find interacting with a familiar voice more appealing and natural than a synthetic one.
  • Advertising Industry: Ad producers can clone a recognizable voice without the need for the owner to be present for lengthy recording sessions. This can circumvent issues surrounding rights ownership and royalties.
  • Audiobook and Podcast Industries: These growing businesses can optimize their production and editing processes by applying voice cloning and voice conversion technology.

ElevenLabs' Approach to Voice Conversion

At ElevenLabs, we're working on developing a voice changer as part of our product suite. Our research focuses on voice cloning and voice synthesis. Our primary goal is to use voice cloning to maintain a speaker's identity while delivering the content in different languages. This process involves training robust multi-language models that parse utterances in the source language and map them onto the target language with the correct intonation, preserving emotions, intent, and delivery style.

Voice Conversion Process

The process of converting a voice involves an algorithm that expresses source speech content with target speech characteristics. This is akin to face-swapping apps, where attributes of a face are mapped, and another face is rendered within these constraints.

In voice conversion, the algorithm encodes target speech properties. It operates at the level of phonemes, the fundamental units of speech, and uses them to render source speech content. However, this process requires a delicate balance to ensure that the target speech characteristics are accurately represented without losing sync with the source speech's emotional charge.


Voice changer technology has the potential to revolutionize industries and redefine the way we interact with digital content. As we continue to explore the boundaries of this technology at ElevenLabs, we look forward to seeing its transformative power unfold.


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