Zoom F4 Timecode Sync: Setup and Requirements

Before you start

Timecode on the Zoom F4 is a position label for each audio frame. It is useful when you record with several devices, such as a camera and an external audio recorder, and want to align them in an editor. The F4 can receive or send timecode through its dedicated timecode input and output, using compatible cables and matching settings.

Check that your external device can output or accept the same timecode format that the F4 uses. Also confirm the recorder frame rate: 23.976, 24, 25, 29.97 and 30 are common options. If your source is set to drop-frame timecode and the recorder is set to non-drop, or the frame rates do not match, the two devices can drift.

Step-by-step instructions

Connect a supported cable from the timecode output of the master device into the timecode input on the F4. Keep the connection secure during recording because timecode sync can be interrupted by a loose connector.

• 1. Turn on the F4 and open the timecode settings on the recorder.
• 2. Set the frame rate to match the master device.
• 3. Choose the external timecode input as the clock source or jam-sync source, depending on the firmware wording.
• 4. Start the master device so it sends timecode.
• 5. Confirm that the F4 display shows the incoming timecode instead of a free-running value.

Some workflows use jam sync: the F4 accepts the incoming value once, then continues running from its internal clock. This is common when the devices cannot stay connected. If the recorder remains connected to a stable external source, continuous external sync may be more precise over long takes.

Check the output

Record a short test with the F4 and the camera or other device running together. Keep the timecode connection in place during the test if you are checking continuous sync. If you are checking jam sync, start both devices after the jam and keep them running for several minutes to see whether the values stay aligned.

Import the files into a non-linear editor, look at the timecode displayed for each clip, and confirm that matching picture and audio moments carry matching timecode. A small difference may be acceptable for short takes, but a growing offset suggests a frame-rate mismatch or the recorder falling back to its internal clock.

Common problems and next steps

If the F4 does not follow the incoming timecode, first check the cable and both connectors. Then confirm that the master device is actively sending timecode and that the recorder is set to the external source. A device that only jam-syncs may not update continuously after the initial sync.

A mismatch between the recording frame rate and the timecode frame rate is a frequent cause of drift. With non-integer rates such as 23.976 or 29.97, confirm whether both devices are using drop-frame or non-drop timecode. Restart the sync after changing any related setting, then repeat the short recording test.

When the master device is a camera, check that its timecode output is enabled and set to the intended mode. Some cameras require a specific output setting or only send timecode while recording. If the camera offers no matching output, use a separate timecode generator as the master and feed both devices from it.