CrystalSound comes from Nami Technology Joint Stock Company (NamiTech), founded in 2022 in Ho Chi Minh City, Vietnam, and backed by FPT Group, the country's largest IT conglomerate. The team's background is in neural signal processing and natural-language AI research, which it applied to a standalone noise-cancellation product for calls and recordings.
CrystalSound sits between a microphone or speaker and any communication app (Zoom, Teams, Discord, Slack), running a deep neural network that strips background noise bidirectionally on both incoming and outgoing audio. Its "My Voice Only" mode registers a user's voice once, then builds a roughly two-meter virtual boundary around the microphone so it filters out other people talking nearby, on-device, without sending raw audio to a server.
Useful for remote workers, podcasters, and support teams taking calls from noisy homes, open offices, or shared spaces. The Starter tier is free with 90 minutes of noise cancellation daily; Premium removes the time cap for $12/month, a Lifetime license runs $39 one-time, and Enterprise pricing with added business tools is quoted on request.
