Do you know what watermarking is in voice biometrics? It’s a method of digitally tagging audio. It involves embedding an inaudible marker, called an identifier, into an audio file. The goal is to protect the recording from unauthorized use and verify its authenticity.

Watermarking is a tool that significantly improves the security of voice biometrics systems, mainly by preventing voice-based attacks, so-called deepfakes.

In one of our tools, we developed this proprietary method, a unique technique that protects audio recordings from being used for voice synthesis or access. The method is currently in functional use.

Phase 2 of the Vesper project, a biometrics-based voice communicator, is nearing completion. During this phase, we worked on creating audio stream augmentation technology. We wrote about what this augmentation is here https://biometriq.pl/en/voice-stream-augmentation-what-is-it/

Our proprietary voice stream augmentation engine is currently undergoing perceptual (listening) and blind testing. Their goal is to provide an objective evaluation to confirm proper engine operation in line with the established quality parameters. Furthermore, the built-in voice stream augmentation technology in the voice messenger is designed to aid in detecting unauthorized voice use for further synthesis/conversion without causing degradation of sound to the human ear. This is all to prevent voice theft and ensure the most effective service performance.

It’s worth noting that solutions on the market such as SKYPE, ZOOM, DISCORD, Google Meet, TEAMS, WhatsApp, Signal, Threema, Viber, and Telegra do not support biometric caller authentication.

We are pioneers in this regard.

The comprehensive project completion is scheduled for September 2026.

In the first stage of the project, we mainly tested the far end voice stream source authenticity algorithm, which we informed you about here https://biometriq.pl/en/tests-of-a-voice-communicator-with-a-source-authenticity-detection-module-are-underway/


You can read more about the project on the website https://biometriq.pl/en/vesper-save-voice-communication-platform-with-integration-of-biometric-services/


Project financed by EU funds.

Are you curious about the final solution?