Cartesia Sonic
Sonic is the fastest human-like voice API.
5.0•22 reviews•424 followers
Sonic is the fastest human-like voice API.
5.0•22 reviews•424 followers
Sonic is a blazing fast, lifelike generative voice API (🚀 135ms model latency). Build high quality, real time voice experiences with a diverse voice library, instant voice cloning, voice mixing, and voice design with speed and emotion control.
Cartesia Sonic
The 135ms latency is the number that matters most here. For real time voice agents anything above a couple hundred milliseconds starts to feel like talking to a machine, so keeping it this low is what makes back and forth conversation actually work. Pairing that speed with voice cloning and emotion control is a strong combination. Tested the demo and the responsiveness held up well.
I've been testing Cartesia Sonic, and I wanted to share my feedback.
Overall, I'm impressed with the quality of the Indonesian text-to-speech. The voices sound quite natural, especially compared to many other TTS services I've tried. It's clear that you've made great progress in supporting the Indonesian language.
One thing I noticed is that there are currently only two Indonesian voice options—one male and one female. I tested the female voice, and while it sounds fairly natural, it still feels a little stiff in some sentences and emotional expressions.
I hope that in the future, Cartesia Sonic will offer more Indonesian voice options, with different speaking styles, tones, and personalities. Indonesia has a large and growing community of content creators, businesses, educators, and AI developers who would greatly benefit from a wider selection of high-quality Indonesian voices.
Based on my experience, I think Cartesia Sonic is definitely worth trying. The Indonesian TTS quality is already quite good, and I believe it has the potential to become one of the best solutions available as the voices continue to improve.
Thank you for your hard work and innovation. I wish the Cartesia team continued success, and I'm excited to see how the platform evolves in the future.
Best wishes,
Cartesia Sonic