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# Can I hear the watermark?

No. The watermark is completely inaudible. It hides a pattern of sound at frequencies that are masked by the existing audio, making it imperceptible to the human ear.

For more information, see [What is watermarking, and why is ElevenLabs using it?](/docs/help-center/legal/audio-detector/what-is-watermarking-and-why-is-eleven-labs-using-it)

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.