AI Voice Detector · high accuracy

Cloned voices, caught.

Drop in an audio file or call recording. Detect synthetic speech from ElevenLabs, Resemble, PlayHT, OpenAI, and other voice-cloning engines.

  • Detects voice clones from all major TTS platforms
  • Holds up on noisy phone and call recordings
  • Multilingual, works across accents and dialects
caller-recording.mp3 · 0:48
Likely Synthetic
0:000:120:240:360:48
Confidence0.94
VerdictLikely Synthetic
Pitch contourFlat
Breath gapsAbsent
Spectral edgeQuantized
Noise profileStudio-clean
What it catches

The signals a human ear can't reliably hear.

Synthetic speech is statistically different from human speech. Our model triangulates across six independent signals. A file has to fail several before we flag it.

SIGNAL 01

Pitch contour flatness

Real speakers vary pitch involuntarily, micro-fluctuations every 80–150ms. TTS systems smooth them out. We measure the variance.

SIGNAL 02

Missing breath gaps

Humans breathe. Cloned voices often skip the inter-clause inhale or insert a synthetic one of suspiciously consistent duration.

SIGNAL 03

Spectral edge artifacts

Vocoder upsampling leaves a high-frequency quantization signature that most TTS engines can't fully suppress, visible above 8kHz.

SIGNAL 04

Phoneme transition smoothness

Diffusion-based voice clones produce unnaturally smooth phoneme transitions. We compare against a corpus of 200k human speech samples.

SIGNAL 05

Studio-clean noise floor

Phone calls have background noise. A "phone call" with a studio-clean noise floor is one of the strongest deepfake tells.

SIGNAL 06

Frequency-response artifacts

Synthetic speech carries vocoder and upsampling artifacts across the frequency band that microphone-captured human speech does not. We score the whole recording rather than guessing which tool produced it.

Engines we detect

Every major voice-clone platform.

We detect output from current TTS and voice-cloning systems, and update our models as new engines appear.

ElevenLabs
Resemble AI
PlayHT
OpenAI Voice
Microsoft Azure
Google WaveNet
Amazon Polly
Murf
Speechify
Descript Overdub
Coqui
Tortoise
XTTS-v2
Bark
+ 36 more
Real cases

The attacks we'd have caught.

Documented voice-clone fraud in the last 24 months. Every one had a clear acoustic signal we'd have flagged inside a second.

Hyderabad · $1,688 lost

A woman in Hyderabad lost Rs 1.4 lakh to a scammer using AI to mimic her nephew's voice. A clone like this typically shows a flat pitch contour and missing breath gaps, the kind of thing Signals 01 and 02 catch.

Hong Kong · $25.6M lost

A finance worker was tricked into sending $25.6M after a deepfake video call with cloned voices of the CFO and colleagues. A studio-clean noise floor on a "Zoom call" is exactly the kind of tell Signal 05 flags.

"Mom these bad men have me"

A mother received a fake-kidnapping ransom call using a clone of her daughter's voice. A cloned plea tends to stay tonally flat across 90 seconds, where genuine distress would vary.

FAQ

Frequently Asked Questions.

What is an AI voice detector? +

An AI voice detector analyzes an audio recording and estimates whether the speech is a real human voice or AI-generated, such as a voice clone or synthetic speech. DeepfakeDetector.ai returns a clear verdict, Authentic, Likely Synthetic, or Inconclusive, paired with a TrustScore from 0 to 100.

How accurate is the AI voice detector? +

It detects AI-generated and cloned speech with high accuracy and pairs every result with a confidence score, because detection is probabilistic rather than absolute. Accuracy can vary with audio quality, compression, and background noise, so treat a verdict as strong evidence to weigh alongside the source and context.

Can it detect ElevenLabs and other AI voice clones? +

Yes. It detects synthetic speech from ElevenLabs, Resemble, PlayHT, OpenAI, and other major voice-cloning tools. The result is a whole-file verdict with a confidence score; it does not name which specific tool produced the audio.

What audio formats and lengths are supported? +

Upload MP3, WAV, OGG, or M4A files. The free plan analyzes clips up to 2 minutes per detection, and paid plans handle up to 10 minutes per detection.

Is the AI voice detector free? +

Yes. A free account includes 50 detections a month across voice, image, and video, with no card required. Paid plans add higher quotas, longer clips, API access, and exports.

Can it detect an AI voice during a live phone call? +

Not in real time. The detector analyzes uploaded recordings rather than monitoring live calls. If a call feels suspicious, record it where lawful or save the voicemail, then upload the audio for a verdict.

How can I tell if a voice is AI-generated? +

Listen for flat or mismatched emotion, missing breaths, unnaturally even pacing, and a sterile, room-free background. No single sign is proof, so stack a few cues and then confirm with the detector.

Is my audio stored after analysis? +

Files are deleted from primary storage within 60 seconds of analysis unless you opt into retention.

Detect Deepfakes
Before They Spread.

The free plan includes 50 detections a month. Starter at $49/mo handles 1,000. Enterprise scales to 20,000.