The audio watermark, or audio signature, embeds a user's personal information into the audio as an inaudible watermark if they record during a meeting. If the audio file is shared without permission, Zoom can help identify which participant recorded the meeting.
Note: This option requires enabling the meeting options Only signed-in users can join the meeting or Only signed-in users with specified domains can join meetings.
- Account owner or admin privileges
- Zoom desktop client
- Windows: 4.3.46185.0120 or higher
- macOS: 4.3.53325.0120 or higher
- Linux: 2.7.162522.0121 or higher
- Zoom mobile app
- iOS: 4.3.0 (54294.0122) or higher
- Android: 4.3.46193.0120 or higher
Enabling audio watermark
To enable audio watermark for all users in the account:
- Sign in to the Zoom web portal as an admin with the privilege to edit account settings.
- In the navigation panel, click Account Management then Account Settings.
- Click the Meeting tab.
- Under Schedule Meeting, verify that Add audio watermark is enabled.
- If the setting is disabled, click the toggle to enable it. If a verification dialog box appears, click Turn On to verify the change.
- (Optional) If you want to make this setting mandatory for all users in your account, click the lock icon , 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.
Requesting information on an audio file
If you need to know who recorded an audio file, submit a request to Zoom Technical 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.