Know a real person is on the line — right now.

Passive, real-time confirmation that a genuine live human is speaking — not a synthetic, cloned or converted voice.

  • 97%Detection accuracy
  • ~4 sOf speech for a first verdict
  • On-premDeployment
  • TürkiyeHomegrown technology
01See it work

The tell is in the line itself.

A live caller keeps the signal breathing with its own irregular rhythm. Pipe in a generated voice and the same line goes mechanically regular — too even to be breathing.

Sample
LIVE00:04:17:22
Synthetic voice detected00:04:29:10

A real caller keeps the line breathing.

The same line — now generated, not living.

02What a live line sounds like

We don't ask the caller to do anything. We just listen for the things only a live person produces.

  • Breath & micro-pauses

    The small, uneven pauses and breaths of someone actually talking.

  • Room & background

    The live acoustics around a real caller, versus audio generated in a clean signal chain.

  • Micro-timing

    The natural, non-repeating rhythm generated speech can't sustain.

  • Vocoder signature

    The faint vocoder signature left behind when speech is generated.

03Where liveness matters

The moments where "is this a real person, right now?" is the whole question.

  • Account takeover

    A cloned or synthetic reply shouldn't pass as a live customer on the line.

  • Voice passphrases & IVR

    Flag synthetic voices fed into automated voice prompts and self-service menus.

  • High-value transfers

    Confirm a real person is authorizing — in the moment, not after the money moves.

04Passive by design

No passphrase. No prompts. No friction.

The caller simply speaks. Liveness runs continuously, in real time, and pairs with voice biometrics — biometrics confirms who is speaking, liveness confirms that a live person is speaking right now.

05On-premise
Runs inside your walls.

Voice Liveness deploys on-premise. Call audio and analysis stay within your own environment and never leave it.

06SynVoi

Part of SynVoi.

Voice Liveness is one capability of SynVoi, Spiron's on-premise voice-AI engine. Trust what you hear.

Address
İTÜ ARI Teknokent 2, Block B
Sarıyer / İstanbul, Türkiye