Deep Voice™ Engine

Our proprietary end-to-end deep neural network-based speaker recognition system.


What is Deep Voice™ Engine?

Our AI and machine learning algorithms remove background noise and enhance audio so we focus solely on the user’s voice — helping to identify attacks ranging from voice morphing and recorded voices, to synthesized and simulated voices.

Avoid background noise interference

Fraudsters attempting to mask their identity will often try to hide behind distracting or loud background noise. Pindrop Voiceprinting™ technology is designed to minimize sensitivity to background noise, reducing distractions and taking the advantage away from fraudsters.

Deep analysis from short utterances

Every caller’s voice presents unique acoustic and behavioral features over the wire. Pindrop analyzes these unique signals, extracted from short utterances of a caller’s speech — whether they are interacting with the IVR or with an agent — to develop a unique voiceprint for each caller.


Pindrop doesn’t stop at the first enrolled call. As more calls are analyzed per caller, the credential grows stronger. This maturation process also protects against degradation of the voice over time.

Featured Content

Pindrop Voice Intelligence & Security Report Finds Fraudsters Passed Knowledge Based Authentication Questions 92 Percent of the Time.

Learn the innovative ways bad actors take advantage of certain authentication methods to commit fraud to better protect customer accounts.

*2022 Voice Intelligence & Security Report, Pindrop

Deep Voice™ Engine for call centers

  • Call centers use Pindrop Voiceprinting™ technology to analyze the characteristics of their customers’ voices. With the Deep Voice™ Engine, they can verify that callers are who they claim to be, or if a caller’s voice matches that of a known fraudster profile. 

    • Whitelist: Compare a caller’s voice against an enrolled voiceprint tied to an identity claim.
    • Blacklist: Crossmatch a caller’s voice against Pindrop’s voice blacklist to detect repeat fraudsters
    • Anomaly Detection: Examine speech for voice morphing, recording and playback attacks, and simulated voices.
Partner & Customers

Pindrop Pulse


Pindrop’s Latest Technology Changes the Game for Caller Authentication

In 2020, Pindrop acquired New-York based company, Next Caller Inc., and with it, the VeriCall® technology—a best-in-class phone number (ANI) validation and spoof detection service. VeriCall technology is responsible for helping to streamline the call experience for customers of the country's largest brands. The solution provides near real-time caller ID intelligence to remove friction during authentication and helps to secure the phone channel by flagging high-risk interactions like call spoofing.


Measuring STIR/SHAKEN Attestationsvs. Pindrop® Technology for Contact Centers

Pindrop monitored over 260 million calls between April 2021 and June 2022, producing stunning insights that include how only 35% of calls were delivered with any Attestation at all, spoofed calls were given an Attestation A by carriers on numerous occasions, and hundreds of thousands of calls given an Attestation C were cleared for step-down authentication by PindropⓇ technology.


Authentically You

From the moment we're born, we use our voices to identify ourselves, to prove who we are, and to make connections. See how Pindrop is enabling voice for authentication and fraud prevention.

Ready to Reduce Fraud?