Voice biometrics

Speaker verification

We provide multimodal digital identity verification through facial and voice biometrics. A security test that can add more accuracy to fraud detection is voice (speaker) verification.

The PresentID speaker verification API/SDK checks whether two voices belong to the same person or not. This capability is potentially useful in call centers.

We have proposed a deep learning-based method for speaker verification. Our team has worked on this project for over a year and the accuracy exceeded criteria such as the accuracy of the Andrew Zisserman group paper from the university of oxford. Unlike other text-dependent methods, our system is text- and language-independent.

Our model's processing speed ​​is less than 1 sec. The system identifies a person by simply checking two voices lasting 4 seconds. Our system works perfectly in English, French, Spanish, German, Persian and Arabic, even in a noisy environment.

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Voice biometrics


  • Accuracy greater than 90%.
  • Processing time less than 1 second.
  • No GPU needed.
  • Language and text independent.
  • Support for iOS, Android, Windows and Mac devices.
  • Easy integration with your application.
Voice biometrics

Rules and restrictions

  • Send data via base64 or voice URL or voice file.
  • The voice must last between three seconds and one minute.
  • Voices must not exceed 5 mb.
  • Supported file types: wav, mp3, mp4, flac, aac, ogg.
Voice biometrics

use cases

  • Call center
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Free try

Speaker check demo

First, read PresentID's privacy notice carefully before trying the demo.

1. Open this page on your mobile phone
2. Tap the record icon
3. Allow access to your recorder
4. Tap the record icon to stop the recorder
5. Press the play button and listen to your voice
6. If confirmed, tap download
7. Repeat the above for the second voice
8. Finally, tap compare

JSON output 

Try our speaker verification API on RapidAPI

7.4 / 10
Service level:

Introducing speaker verification

The PresentID speaker verification API checks whether two voices belong to the same person or not. This capability is potentially useful in call centers.

Free try
Basic Plan

$ 0 / month

100 FREE Requests
Pro Plan

$ 0.03

Per Request

Get in touch

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