Adding audio watermark

The audio watermark, or audio signature, is an inaudible watermark of a user's personal information embedded in the audio that is played through the receiving user's speakers by the client receiving audio from Zoom meeting servers. This means that if someone records the meeting, with either a separate microphone or 3rd-party, and shares the audio file without permission, Zoom can assist with determining which participant was responsible.

Local and cloud recordings made directly through Zoom do not contain the audio watermark, as there are other methods to determine who recorded or shared the meeting audio. 

This article covers:

Prerequisites for adding an audio watermark

How to enable audio watermark for the account

To enable or disable audio watermark for all users in the account:

  1. Sign in to the Zoom web portal as an admin with the privilege to edit account settings.
  2. In the navigation menu, click Account Management then Account Settings.
  3. Click the Meeting tab.
  4. Under Schedule Meeting, click the Add audio watermark toggle to enable or disable.
  5. If a verification dialog appears, click Enable or Disable to verify the change.
  6. (Optional) Click or clear the check box next to Turn on audio watermark by default for all meetings, including meetings scheduled through calendar integrations, then click Save.
  7. (Optional) If you want to make this setting mandatory for all users in your account, click the lock icon unlocked-button.png, and then click Lock to confirm the setting.

    Note: This will require the meeting options Only signed-in users can join the meeting or Only signed-in users with specified domains can join meetings to also be locked on.

How to request information on an audio file

If you need to know who recorded an audio file, submit a request to Zoom Support. In your request, include the Meeting ID, date and time of occurrence, and the recording file (video or audio file).

Note: The file must have audio of at least 2 minutes in length.