Transform your voice today
Experience precise control over the speech you generate on our platform. Show us how you want something to be said, and our voices will deliver it perfectly, every time.
Extensive voice library
Discover a diverse collection of unique voices in our voice library to bring your content to life.
Custom voices
Mix multiple voices, customize speed and emotions to design your custom voice.
Translation and Localization
Our AI voice changer excels at localization, preserving the original voices and emotions.
What our customers say
Join the growing list of companies opting for Sonic.
“Poe brings together the world's best AI, all in one place. With Cartesia's Sonic model, users can interact with a wide range of high-quality, human-like voices in multiple languages, enhancing their experience on our platform.”
Spencer Chan, Head of Poe Product, Quora
"Gaming has always been where communities form - from my generation's World of Warcraft and Runescape to today's Roblox and Minecraft. As games evolve into social platforms, AI characters need to feel genuinely human in both their responsiveness and emotional depth. Cartesia's technology, with its ultra-low latency, natural voices, and precise emotional control, helps us create truly immersive worlds where AI characters feel alive and authentic."
Peggy Wang, Co-Founder and CTO, Ego
"Cartesia’s Sonic model is a game-changer for our Conversational Video Interface. Its ultra-low latency of 90ms and high-quality voice generation have enabled us to create truly immersive real-time conversations with AI digital twins. The natural voices and voice design capabilities have elevated our product to new heights."
Hassaan Raza, Co-Founder and CEO, Tavus
How to Use Our AI Voice Changer
Step One
Try Cartesia's AI voice changer on our website. Simply create a free account and upload your original recording.
Step Two
Choose your preferred voice and language settings. Transform your voice with our lifelike voice changer.
Step Three
Apply voice changes to your content to hear it in a different voice, with complete control over the delivery.